Cardiovascular system anatomy 1 salah nazarSalah Nazar
The cardiovascular system consists of the heart and blood vessels. The heart has four chambers - two atria that receive blood and two ventricles that pump blood out. It is surrounded by membranes and has four valves that allow blood to flow in only one direction. The circulatory system is divided into pulmonary and systemic circulation. Pulmonary circulation transports deoxygenated blood to the lungs and oxygenated blood back to the heart. Systemic circulation then pumps oxygenated blood to the entire body through arteries and returns deoxygenated blood to the heart via veins.
Cardiovascular system anatomy 2 salah nazarSalah Nazar
This document provides an overview of the cardiovascular system anatomy. It describes the three main types of blood vessels - arteries, veins, and capillaries. It notes that all blood vessels have three layers and describes the characteristics of arteries, veins, and capillaries. The document then provides details on the major arteries and veins in the head and neck, thorax, abdomen, and limbs. It lists the key arteries and veins in each region and includes diagrams to illustrate the circulatory pathways.
The document provides an overview of heart anatomy including:
- The heart is located in the chest behind the sternum and is surrounded by membranes called pericardium.
- The heart walls contain three layers - epicardium, myocardium and endocardium.
- Blood enters the right atrium from the venae cavae and pulmonary veins into the left atrium. It then passes through valves into the ventricles.
- The left ventricle pumps blood into the aorta to supply the systemic circulation while the right ventricle pumps to the pulmonary artery to supply the lungs.
Veterinary Anatomy of Cardiovascular system and specie difference between dif...Muhammad Amir Sohail
1. The document describes the structure and anatomy of the cardiovascular system, including the heart, blood vessels, and circulation.
2. It details the layers of the pericardium, the chambers and valves of the heart, and the coronary arteries that supply the heart muscle.
3. The major arteries and veins of the systemic and pulmonary circulations are also outlined, including the aorta, vena cava, and their branches that supply the body.
The heart is located in the thoracic cavity surrounded by lungs. It has four chambers - two atria that receive blood and two ventricles that pump blood out of the heart. The heart is enclosed in a double-walled sac called the pericardium and has three layers - the outer epicardium, middle muscular myocardium and inner endocardium. It uses a system of valves to ensure one-way blood flow through four valves into the pulmonary circulation and systemic circulation. The pulmonary circulation oxygenates blood in the lungs and returns it to the heart's left side, while the systemic circulation pumps oxygenated blood to the entire body from the heart's left ventricle.
1. The document describes the anatomy and structure of the cardiovascular system, including the heart, blood vessels (arteries, veins, capillaries), conduction system, and circulatory routes.
2. It explains the layers of the heart (epicardium, myocardium, endocardium), chambers (atria, ventricles), valves (atrioventricular, semilunar), and associated vessels (aorta, vena cava, pulmonary arteries/veins).
3. The fetal circulation is described, which differs from adult circulation in that blood bypasses the lungs via the foramen ovale and ductus arteriosus. These changes allow blood to mix and circulate after
The document discusses the anatomy and structure of the heart valves, conducting system, blood supply, innervation, and applied anatomy. It notes that the heart contains two pairs of valves - atrioventricular and semilunar - which ensure one-way blood flow. The right and left atrioventricular valves have different numbers of cusps. The aortic and pulmonary valves are semilunar in shape. The conducting system initiates and spreads cardiac impulses, while the coronary arteries supply blood to the heart muscle. Applied anatomy discusses common causes of ischemic heart disease.
The document describes the anatomy and physiology of the heart. It details the heart's location in the chest, its internal and external structures like the pericardium, myocardium and valves. It explains the flow of blood through the heart's chambers and major vessels. The conduction system and cardiac cycle are covered, showing how electrical signals cause coordinated heart muscle contraction and blood pumping. Key phases like ventricular filling, contraction and relaxation are summarized.
Cardiovascular system anatomy 1 salah nazarSalah Nazar
The cardiovascular system consists of the heart and blood vessels. The heart has four chambers - two atria that receive blood and two ventricles that pump blood out. It is surrounded by membranes and has four valves that allow blood to flow in only one direction. The circulatory system is divided into pulmonary and systemic circulation. Pulmonary circulation transports deoxygenated blood to the lungs and oxygenated blood back to the heart. Systemic circulation then pumps oxygenated blood to the entire body through arteries and returns deoxygenated blood to the heart via veins.
Cardiovascular system anatomy 2 salah nazarSalah Nazar
This document provides an overview of the cardiovascular system anatomy. It describes the three main types of blood vessels - arteries, veins, and capillaries. It notes that all blood vessels have three layers and describes the characteristics of arteries, veins, and capillaries. The document then provides details on the major arteries and veins in the head and neck, thorax, abdomen, and limbs. It lists the key arteries and veins in each region and includes diagrams to illustrate the circulatory pathways.
The document provides an overview of heart anatomy including:
- The heart is located in the chest behind the sternum and is surrounded by membranes called pericardium.
- The heart walls contain three layers - epicardium, myocardium and endocardium.
- Blood enters the right atrium from the venae cavae and pulmonary veins into the left atrium. It then passes through valves into the ventricles.
- The left ventricle pumps blood into the aorta to supply the systemic circulation while the right ventricle pumps to the pulmonary artery to supply the lungs.
Veterinary Anatomy of Cardiovascular system and specie difference between dif...Muhammad Amir Sohail
1. The document describes the structure and anatomy of the cardiovascular system, including the heart, blood vessels, and circulation.
2. It details the layers of the pericardium, the chambers and valves of the heart, and the coronary arteries that supply the heart muscle.
3. The major arteries and veins of the systemic and pulmonary circulations are also outlined, including the aorta, vena cava, and their branches that supply the body.
The heart is located in the thoracic cavity surrounded by lungs. It has four chambers - two atria that receive blood and two ventricles that pump blood out of the heart. The heart is enclosed in a double-walled sac called the pericardium and has three layers - the outer epicardium, middle muscular myocardium and inner endocardium. It uses a system of valves to ensure one-way blood flow through four valves into the pulmonary circulation and systemic circulation. The pulmonary circulation oxygenates blood in the lungs and returns it to the heart's left side, while the systemic circulation pumps oxygenated blood to the entire body from the heart's left ventricle.
1. The document describes the anatomy and structure of the cardiovascular system, including the heart, blood vessels (arteries, veins, capillaries), conduction system, and circulatory routes.
2. It explains the layers of the heart (epicardium, myocardium, endocardium), chambers (atria, ventricles), valves (atrioventricular, semilunar), and associated vessels (aorta, vena cava, pulmonary arteries/veins).
3. The fetal circulation is described, which differs from adult circulation in that blood bypasses the lungs via the foramen ovale and ductus arteriosus. These changes allow blood to mix and circulate after
The document discusses the anatomy and structure of the heart valves, conducting system, blood supply, innervation, and applied anatomy. It notes that the heart contains two pairs of valves - atrioventricular and semilunar - which ensure one-way blood flow. The right and left atrioventricular valves have different numbers of cusps. The aortic and pulmonary valves are semilunar in shape. The conducting system initiates and spreads cardiac impulses, while the coronary arteries supply blood to the heart muscle. Applied anatomy discusses common causes of ischemic heart disease.
The document describes the anatomy and physiology of the heart. It details the heart's location in the chest, its internal and external structures like the pericardium, myocardium and valves. It explains the flow of blood through the heart's chambers and major vessels. The conduction system and cardiac cycle are covered, showing how electrical signals cause coordinated heart muscle contraction and blood pumping. Key phases like ventricular filling, contraction and relaxation are summarized.
The document summarizes the key anatomical features and locations of the heart and its chambers. It describes that the heart is located in the mediastinum, between the lungs. It has four chambers - two upper atria that receive blood and two lower ventricles that pump blood out. Blood flows through the heart in one direction, from the systemic circulation into the right atrium, then into the right ventricle to be pumped to the lungs, then back into the left atrium from the lungs and finally into the left ventricle to be pumped back out through the aorta to the systemic circulation. The document also briefly describes the layers of the heart wall and important structures like the valves.
The document summarizes the anatomy and basic function of the heart. It discusses the heart's size, location, chambers, blood flow pathways (pulmonary and systemic circulation), and electrical conduction system. It also briefly describes common cardiovascular problems like hypertension, congestive heart failure, and ischemic heart disease.
The human heart is located in the thoracic cavity between the lungs. It is composed of three layers - the outer pericardium, middle myocardium made of heart muscle, and inner endocardium. The heart is divided into four chambers - two upper atria which receive blood, and two lower ventricles which pump blood out. The internal structure includes valves that allow blood to flow in only one direction, preventing backflow.
The document describes the anatomy and structures of the heart. It discusses:
- The heart is surrounded by the pericardium, a double-walled sac that has an outer fibrous layer and inner serous layers separated by fluid.
- The heart has four chambers - two upper atria that receive blood and two lower ventricles that pump blood out. Blood flows through valves between the chambers.
- The heart wall has three layers - the outer epicardium, middle muscular myocardium, and inner endothelial endocardium.
- The heart is supplied by the right and left coronary arteries and drains into the coronary sinus vein.
- Nerves from the autonomic nervous system
The human heart is a vital organ that functions as a pump to provide continuous blood flow through the body via cardiac cycles. It has four chambers - two atria and two ventricles - and is enclosed in the pericardium for protection. The heart has three layers - epicardium, myocardium, and endocardium. It works through a cardiac cycle of atrial systole, ventricular systole, and relaxation to pump blood through the body and lungs. Diseases like coronary heart disease and arrhythmias can affect the heart. Risk factors for cardiovascular diseases include age, high blood pressure, diabetes, and smoking.
The document provides an overview of the anatomy and physiology of the heart. It discusses the external features of the heart including its chambers and circulation. The four chambers of the heart are the right and left atria and ventricles. The document also describes the cardiac cycle which involves the opening and closing of heart valves as the heart contracts and relaxes in a repeated cycle to pump blood.
The document summarizes the structure and function of the human heart. It describes the heart as a muscular pump divided into four chambers - the right and left atria which receive blood, and the right and left ventricles which pump blood out. It details the circulation of blood through the pulmonary and systemic circuits, and explains the roles and structures of the heart valves in ensuring one-way blood flow. It also outlines the layers that surround and protect the heart.
The document provides an overview of the anatomy and physiology of the cardiovascular system. It describes the location and layers of the heart, the four chambers of the heart, the heart valves, the conduction system, the cardiac cycle, and circulation through the systemic and pulmonary circuits. It also discusses monitoring of the heart through tools like electrocardiograms, imaging like MRI and x-rays, stress testing, and pacemakers.
The heart is located in the thoracic cavity, surrounded by the pericardium. It has four chambers - right and left atria which receive blood, and right and left ventricles which pump blood out. The heart has two circulation circuits - pulmonary circulation transports blood to and from the lungs, while systemic circulation transports oxygenated blood to the body. It has four valves that ensure one-way blood flow - tricuspid, pulmonary, mitral and aortic valves. Contraction of the heart muscles pumps blood through the heart and major arteries.
1. The document discusses the structure and position of the heart. It describes the heart as a roughly cone-shaped hollow muscular organ located in the thoracic cavity between the lungs, behind and slightly to the left of the sternum.
2. The heart wall is composed of three layers of tissue - the outer pericardium, middle myocardium, and inner endocardium. The myocardium is the specialized cardiac muscle layer.
3. Internally, the heart is divided by a septum into left and right halves, each with an atrium and ventricle. The right side circulates deoxygenated blood to the lungs, while the left side pumps oxygenated blood to the body
The document summarizes the internal structure of the heart, including its four chambers, septa that divide them, and valves that regulate blood flow. It describes the conduction system that controls heart contractions, including the sinoatrial node that initiates impulses, the atrioventricular node that relays them to ventricles, and Purkinje fibers that conduct impulses through the ventricles. It also reviews the heart's blood supply, innervation by the autonomic nervous system, and roles of the sympathetic and parasympathetic fibers.
The heart contains four chambers - two upper chambers called atria and two lower chambers called ventricles. The atria receive blood from veins into the heart while the thicker-walled ventricles pump blood out of the heart and into arteries. There are three types of circulation - systemic circulation pumps oxygenated blood from the left ventricle to the body, pulmonary circulation pumps deoxygenated blood from the right ventricle to the lungs, and hepatic portal circulation transports blood from the intestines to the liver. Valves between the chambers regulate blood flow through the heart.
The document provides an overview of the anatomy and physiology of the heart. It discusses the location of the heart in the thoracic cavity. It describes the layers of the heart - epicardium, myocardium, and endocardium - and the functions of each layer. It outlines the four chambers of the heart and their roles in blood flow. It explains the cardiac cycle of diastole and systole. It provides details on the heart valves and conducting system. It concludes by listing and briefly defining several important heart conditions.
The cardiovascular system develops rapidly between weeks 3-8 of embryonic development. By week 8, the heart has developed into its four-chambered structure with two atria and two ventricles separated by atrioventricular and semilunar valves. The great vessels have also formed, including the aorta, pulmonary artery, and superior and inferior vena cava. In fetal circulation, three shunts allow blood to bypass the lungs while gas exchange occurs via the placenta. At birth, closure of the ductus venosus, foramen ovale, and ductus arteriosus establishes the postnatal circulation.
The heart is a hollow muscular pump located in the chest cavity. It pumps blood through the circulatory system around the body. The left side pumps oxygenated blood through the arteries while the right side pumps deoxygenated blood to the lungs. On average, the heart beats over 2.5 billion times in a lifetime, pumping over 5,000 liters of blood per year. The heart is protected by membranes and surrounded by fluid within the pericardium. It has four chambers - two upper atria which receive blood and two lower ventricles which pump blood out. Blood flows through the heart via valves which ensure one-way flow.
This document provides an overview of the cardiovascular system including:
1. It describes the main components of the cardiovascular system which are the heart, blood vessels (arteries, veins, capillaries), and lymphatic vessels.
2. It explains the structure and features of arteries, veins, and capillaries. It notes key differences in their structure and function.
3. It outlines the internal and external features of the heart including the layers of the heart (endocardium, myocardium, pericardium), valves, chambers and openings.
The cardiovascular system consists of the heart, blood vessels, and blood. The heart is a hollow muscular organ located in the chest that pumps blood through two circuits: systemic circulation and pulmonary circulation. It has four chambers - right and left atria and ventricles separated by valves. Blood vessels include arteries, which carry blood away from the heart, and veins, which carry blood back to the heart. The cardiovascular system also contains a conduction system that initiates and regulates the heartbeat, starting with the sinoatrial node. Blood vessels have three layers - tunica intima, media, and externa - that vary in thickness and composition between arteries and veins.
The heart is a hollow, muscular organ located slightly left of center in the chest. It is surrounded by three layers of tissue - the outer fibrous pericardium, middle muscular myocardium, and inner endothelial endocardium. The heart is divided into four chambers - right atrium, right ventricle, left atrium, and left ventricle - with valves that ensure one-way blood flow. Deoxygenated blood enters the right atrium from the body and is pumped to the lungs via the right ventricle. Oxygenated blood returns to the left atrium from the lungs and is pumped back out to the body by the left ventricle.
The cardiovascular system begins developing in the 4th week of embryo development. The heart beats 70 times per minute, 100,000 times per day, and over 2.5 billion times in a 70 year lifespan. It is located in the mediastinum between the lungs and has four chambers - left and right atria and left and right ventricles. Blood flows through the heart, lungs, and body via arteries, arterioles, capillaries, venules and veins. The heart wall has three layers - endocardium, myocardium, and epicardium. Blood pressure is influenced by many physiological and pathological factors like age, sex, meals, emotions, exercise, sleep, and disease states.
The heart is a hollow muscular organ located in the middle mediastinum. It is approximately the size of a fist and weighs 250-300 grams. The heart has four chambers - two upper atria and two lower ventricles. It is surrounded by a double-walled sac called the pericardium. The heart pumps blood through two circuits - the pulmonary circulation and the systemic circulation - using a series of valves to ensure one-way blood flow.
The document summarizes the key anatomical features and locations of the heart and its chambers. It describes that the heart is located in the mediastinum, between the lungs. It has four chambers - two upper atria that receive blood and two lower ventricles that pump blood out. Blood flows through the heart in one direction, from the systemic circulation into the right atrium, then into the right ventricle to be pumped to the lungs, then back into the left atrium from the lungs and finally into the left ventricle to be pumped back out through the aorta to the systemic circulation. The document also briefly describes the layers of the heart wall and important structures like the valves.
The document summarizes the anatomy and basic function of the heart. It discusses the heart's size, location, chambers, blood flow pathways (pulmonary and systemic circulation), and electrical conduction system. It also briefly describes common cardiovascular problems like hypertension, congestive heart failure, and ischemic heart disease.
The human heart is located in the thoracic cavity between the lungs. It is composed of three layers - the outer pericardium, middle myocardium made of heart muscle, and inner endocardium. The heart is divided into four chambers - two upper atria which receive blood, and two lower ventricles which pump blood out. The internal structure includes valves that allow blood to flow in only one direction, preventing backflow.
The document describes the anatomy and structures of the heart. It discusses:
- The heart is surrounded by the pericardium, a double-walled sac that has an outer fibrous layer and inner serous layers separated by fluid.
- The heart has four chambers - two upper atria that receive blood and two lower ventricles that pump blood out. Blood flows through valves between the chambers.
- The heart wall has three layers - the outer epicardium, middle muscular myocardium, and inner endothelial endocardium.
- The heart is supplied by the right and left coronary arteries and drains into the coronary sinus vein.
- Nerves from the autonomic nervous system
The human heart is a vital organ that functions as a pump to provide continuous blood flow through the body via cardiac cycles. It has four chambers - two atria and two ventricles - and is enclosed in the pericardium for protection. The heart has three layers - epicardium, myocardium, and endocardium. It works through a cardiac cycle of atrial systole, ventricular systole, and relaxation to pump blood through the body and lungs. Diseases like coronary heart disease and arrhythmias can affect the heart. Risk factors for cardiovascular diseases include age, high blood pressure, diabetes, and smoking.
The document provides an overview of the anatomy and physiology of the heart. It discusses the external features of the heart including its chambers and circulation. The four chambers of the heart are the right and left atria and ventricles. The document also describes the cardiac cycle which involves the opening and closing of heart valves as the heart contracts and relaxes in a repeated cycle to pump blood.
The document summarizes the structure and function of the human heart. It describes the heart as a muscular pump divided into four chambers - the right and left atria which receive blood, and the right and left ventricles which pump blood out. It details the circulation of blood through the pulmonary and systemic circuits, and explains the roles and structures of the heart valves in ensuring one-way blood flow. It also outlines the layers that surround and protect the heart.
The document provides an overview of the anatomy and physiology of the cardiovascular system. It describes the location and layers of the heart, the four chambers of the heart, the heart valves, the conduction system, the cardiac cycle, and circulation through the systemic and pulmonary circuits. It also discusses monitoring of the heart through tools like electrocardiograms, imaging like MRI and x-rays, stress testing, and pacemakers.
The heart is located in the thoracic cavity, surrounded by the pericardium. It has four chambers - right and left atria which receive blood, and right and left ventricles which pump blood out. The heart has two circulation circuits - pulmonary circulation transports blood to and from the lungs, while systemic circulation transports oxygenated blood to the body. It has four valves that ensure one-way blood flow - tricuspid, pulmonary, mitral and aortic valves. Contraction of the heart muscles pumps blood through the heart and major arteries.
1. The document discusses the structure and position of the heart. It describes the heart as a roughly cone-shaped hollow muscular organ located in the thoracic cavity between the lungs, behind and slightly to the left of the sternum.
2. The heart wall is composed of three layers of tissue - the outer pericardium, middle myocardium, and inner endocardium. The myocardium is the specialized cardiac muscle layer.
3. Internally, the heart is divided by a septum into left and right halves, each with an atrium and ventricle. The right side circulates deoxygenated blood to the lungs, while the left side pumps oxygenated blood to the body
The document summarizes the internal structure of the heart, including its four chambers, septa that divide them, and valves that regulate blood flow. It describes the conduction system that controls heart contractions, including the sinoatrial node that initiates impulses, the atrioventricular node that relays them to ventricles, and Purkinje fibers that conduct impulses through the ventricles. It also reviews the heart's blood supply, innervation by the autonomic nervous system, and roles of the sympathetic and parasympathetic fibers.
The heart contains four chambers - two upper chambers called atria and two lower chambers called ventricles. The atria receive blood from veins into the heart while the thicker-walled ventricles pump blood out of the heart and into arteries. There are three types of circulation - systemic circulation pumps oxygenated blood from the left ventricle to the body, pulmonary circulation pumps deoxygenated blood from the right ventricle to the lungs, and hepatic portal circulation transports blood from the intestines to the liver. Valves between the chambers regulate blood flow through the heart.
The document provides an overview of the anatomy and physiology of the heart. It discusses the location of the heart in the thoracic cavity. It describes the layers of the heart - epicardium, myocardium, and endocardium - and the functions of each layer. It outlines the four chambers of the heart and their roles in blood flow. It explains the cardiac cycle of diastole and systole. It provides details on the heart valves and conducting system. It concludes by listing and briefly defining several important heart conditions.
The cardiovascular system develops rapidly between weeks 3-8 of embryonic development. By week 8, the heart has developed into its four-chambered structure with two atria and two ventricles separated by atrioventricular and semilunar valves. The great vessels have also formed, including the aorta, pulmonary artery, and superior and inferior vena cava. In fetal circulation, three shunts allow blood to bypass the lungs while gas exchange occurs via the placenta. At birth, closure of the ductus venosus, foramen ovale, and ductus arteriosus establishes the postnatal circulation.
The heart is a hollow muscular pump located in the chest cavity. It pumps blood through the circulatory system around the body. The left side pumps oxygenated blood through the arteries while the right side pumps deoxygenated blood to the lungs. On average, the heart beats over 2.5 billion times in a lifetime, pumping over 5,000 liters of blood per year. The heart is protected by membranes and surrounded by fluid within the pericardium. It has four chambers - two upper atria which receive blood and two lower ventricles which pump blood out. Blood flows through the heart via valves which ensure one-way flow.
This document provides an overview of the cardiovascular system including:
1. It describes the main components of the cardiovascular system which are the heart, blood vessels (arteries, veins, capillaries), and lymphatic vessels.
2. It explains the structure and features of arteries, veins, and capillaries. It notes key differences in their structure and function.
3. It outlines the internal and external features of the heart including the layers of the heart (endocardium, myocardium, pericardium), valves, chambers and openings.
The cardiovascular system consists of the heart, blood vessels, and blood. The heart is a hollow muscular organ located in the chest that pumps blood through two circuits: systemic circulation and pulmonary circulation. It has four chambers - right and left atria and ventricles separated by valves. Blood vessels include arteries, which carry blood away from the heart, and veins, which carry blood back to the heart. The cardiovascular system also contains a conduction system that initiates and regulates the heartbeat, starting with the sinoatrial node. Blood vessels have three layers - tunica intima, media, and externa - that vary in thickness and composition between arteries and veins.
The heart is a hollow, muscular organ located slightly left of center in the chest. It is surrounded by three layers of tissue - the outer fibrous pericardium, middle muscular myocardium, and inner endothelial endocardium. The heart is divided into four chambers - right atrium, right ventricle, left atrium, and left ventricle - with valves that ensure one-way blood flow. Deoxygenated blood enters the right atrium from the body and is pumped to the lungs via the right ventricle. Oxygenated blood returns to the left atrium from the lungs and is pumped back out to the body by the left ventricle.
The cardiovascular system begins developing in the 4th week of embryo development. The heart beats 70 times per minute, 100,000 times per day, and over 2.5 billion times in a 70 year lifespan. It is located in the mediastinum between the lungs and has four chambers - left and right atria and left and right ventricles. Blood flows through the heart, lungs, and body via arteries, arterioles, capillaries, venules and veins. The heart wall has three layers - endocardium, myocardium, and epicardium. Blood pressure is influenced by many physiological and pathological factors like age, sex, meals, emotions, exercise, sleep, and disease states.
The heart is a hollow muscular organ located in the middle mediastinum. It is approximately the size of a fist and weighs 250-300 grams. The heart has four chambers - two upper atria and two lower ventricles. It is surrounded by a double-walled sac called the pericardium. The heart pumps blood through two circuits - the pulmonary circulation and the systemic circulation - using a series of valves to ensure one-way blood flow.
The document describes the structure and function of the heart. It discusses the location of the heart in the mediastinum and its external and internal anatomy. The four chambers of the heart (right and left atria and ventricles) are described along with the valves that regulate blood flow. The circulations of blood through the pulmonary system and systemic circulation are also summarized. Key details about the layers of the heart wall, coronary circulation and blood flow through arteries, capillaries and veins are provided.
The cardiovascular system consists of the heart and blood vessels that circulate blood throughout the body. The heart has four chambers and uses valves to ensure one-way blood flow. It is regulated by the autonomic nervous system. During each cardiac cycle, the atria contract followed by ventricular contraction that pumps blood out of the heart into the arteries. Relaxation of the ventricles allows blood to flow back into the heart. The conductive system generates electrical signals that coordinate the heart's pumping action.
The cardiovascular system consists of the heart and blood vessels. The heart is a muscular pump located in the chest cavity that pumps blood through two circuits - the pulmonary circulation and the systemic circulation. It has four chambers - two upper atria and two lower ventricles. The right side pumps deoxygenated blood to the lungs and the left side pumps oxygenated blood to the body. Important structures include the valves that ensure one-way blood flow and the specialized conduction system that coordinates heart contractions. The heart is supplied with oxygenated blood from the coronary arteries on its surface.
The circulatory system is divided into the heart and blood vessels. The heart pumps blood into the pulmonary and systemic circulations. The right side pumps blood to the lungs and the left side pumps oxygenated blood to the rest of the body. The heart has four chambers, valves to ensure one-way blood flow, and a conducting system to coordinate contractions. Arteries carry blood away from the heart while veins return blood to the heart.
The human heart is a muscular organ that provides continuous blood circulation through the cardiac cycle. It is located in the middle of the chest behind the sternum. The heart is divided into four chambers - two upper atria and two lower ventricles. Blood flows through the heart via heart valves which allow blood to flow in one direction. The heart's rhythm is controlled by the sinoatrial node which generates electrical signals to coordinate contractions. The cardiac cycle consists of diastole where chambers fill with blood and systole where ventricles contract to pump blood out of the heart. The circulatory system transports blood from the heart to tissues and back again via different circulatory routes.
The cardiovascular system consists of two circuits - the pulmonary circuit and the systemic circuit. In the pulmonary circuit, deoxygenated blood is pumped from the right side of the heart to the lungs where it receives oxygen and returns to the left side of heart. In the systemic circuit, oxygenated blood is pumped from the left side of the heart through the aorta to the entire body, then returns to the right side of the heart. The heart is made up of four chambers - two upper atria which collect blood and two lower ventricles which pump blood out of the heart. It is surrounded and protected by membranes and contains valves that allow blood to flow in only one direction.
The heart has four chambers. The two superior receiving chambers are the atria (= entry halls or chambers), and the two inferior pumping chambers are the ventricles (= little bellies).
On the anterior surface of each atrium is a wrinkled pouchlike structure called an auricle
The cardiovascular system circulates blood throughout the body using the heart as a pump. The heart has four chambers - two upper atria and two lower ventricles. It is surrounded by membranes and tissues. Blood enters the right atrium from the body, then passes to the right ventricle which pumps it to the lungs. Oxygenated blood returns to the left atrium and passes to the left ventricle which pumps it out to the body via the aorta. The heart contracts over 100,000 times per day to circulate blood through the pulmonary and systemic circuits. Valves ensure blood only flows in one direction through the heart.
✓Heart
✓Anatomy of heart
✓Blood circulation
✓Blood Vessels
✓Structure and function of artery, vein and capillaries
✓Elements of conduction system of heart and heart beat
✓Its regulation by nervous system
✓Cardiac output
✓Cardiac cycle
✓Regulation of bood pressure
✓Pulse
✓Electrocardiogram
✓Disorder of heart
The cardiovascular system comprises the heart, blood vessels, and blood. The heart is a four-chambered muscular pump located in the chest that circulates blood through the body and lungs. It has four chambers - two upper atria and two lower ventricles. Blood flows from the systemic circulation into the right atrium, then into the right ventricle and to the lungs for oxygenation before returning to the left atrium and ventricle and being pumped back out through the aorta to repeat the cycle. The heart is surrounded by membranes and receives blood through the coronary arteries to nourish its own tissue.
Anatomy of Heart- Internal structures ptSaili Gaude
This lecture consists of the anatomy of heart, layers, its valves and conduction system. It also includes coronary circulation and venous supply of heart.
Cardiovascular physiology for university studentsItsOnyii
A detailed pdf document on cardiovascular physiology for university students including structure and functions of heart, Electrocardiogram, echocardiography, chest and limb leads, Diseases and disorders of the heart.
The circulatory system consists of the heart, blood vessels, and blood. The heart pumps blood through two circuits - pulmonary circulation to the lungs and systemic circulation to the entire body. It has four chambers and four valves that ensure one-way blood flow. The cardiac cycle involves repeated heart contraction and relaxation to pump blood. Key components like arteries, veins, and capillaries form blood vessels that deliver oxygen and nutrients throughout the body.
The cardiovascular system consists of the heart and blood vessels. The heart has four chambers and pumps blood through two circuits. Blood vessels include arteries, which carry blood away from the heart, and veins, which carry blood back to the heart. Capillaries allow for gas and nutrient exchange between blood and tissues. The cardiovascular system circulates blood through the lungs to receive oxygen and remove carbon dioxide, and through the body to deliver oxygen and nutrients to tissues.
The document provides information about the structure and function of the heart. It describes the four chambers and valves of the heart and how blood flows through the heart in two separate pumps (pulmonary and systemic circulation). It also discusses the conduction system that controls heart rate, including the sinoatrial node and atrioventricular node. Blood pressure is defined and the factors that influence it are explained. An electrocardiogram is used to measure the heart's electrical activity.
The heart is a hollow muscular pump located in the chest cavity. It beats over 2.5 billion times in a lifetime to pump blood through the body. The left side pumps oxygenated blood through the body, while the right side pumps deoxygenated blood to the lungs. The heart is surrounded by membranes and has four chambers - two upper atria that receive blood and two lower ventricles that pump blood out. It is supplied with oxygenated blood by the coronary arteries and drained by coronary veins. The heart is innervated by the autonomic nervous system to regulate its rhythm and strength.
The document summarizes key aspects of the cardiovascular system, including:
- The cardiovascular system includes the heart and blood vessels, with the heart pumping blood through the vessels to circulate nutrients and oxygen throughout the body.
- The heart has four chambers - two upper atria and two lower ventricles. The right side receives deoxygenated blood and pumps it to the lungs, while the left side receives oxygenated blood from the lungs and pumps it out to the body.
- The sinoatrial node, located in the right atrium, acts as the natural pacemaker of the heart by producing rhythmic electrical impulses that cause the heart to contract and pump blood through the circulatory system
Information about PCOS i.e. polycystic ovarian syndrome.
It is not same as the PCOD.
This presentation contain data about causes, treatments, etiology, diagnosis, symptoms and pathophysiology of PCOS
HIV is a virus that causes AIDS by weakening the immune system. It is transmitted through bodily fluids and can survive for days outside the body. While treatments can slow the virus, there is currently no cure and those infected have it for life. The pandemic originated in Africa and has led to millions of deaths worldwide. Diagnosis involves testing for antibodies and CD4 cell counts, while prevention focuses on avoiding fluid exchange and using protection during sex or needle sharing. Combination drug regimens can suppress the virus but not eliminate it.
Heart failure is a condition where the heart is unable to pump enough blood to meet the body's needs. It affects over 5 million Americans. The main causes are problems with the heart muscle itself or increased strain from other conditions like high blood pressure. As the heart fails, blood backs up in the lungs and legs, causing shortness of breath, leg swelling, and other issues. The body tries to compensate through mechanisms like releasing stress hormones, but over time the condition worsens without treatment. Diagnosis involves tests like echocardiograms, EKGs and blood tests, while treatment focuses on managing symptoms and underlying causes.
1. The General Adaptation Syndrome describes the body's automatic response to stress in three stages: alarm reaction, resistance and adaptation, and exhaustion.
2. In the alarm reaction stage, the body's fight or flight response is activated through the release of adrenaline. If stress continues, the body enters the resistance and adaptation stage where it builds tolerance to stressors.
3. If stress persists long-term without periods of relaxation, the exhaustion stage can occur where all resources are depleted and the body can no longer maintain normal function.
Anaphylaxis is a serious allergic reaction that is rapid in onset and can cause death. It is caused by exposure to an allergen such as food, medication, venom, or other factors. Symptoms involve the skin, respiratory system, gastrointestinal tract, and cardiovascular system. Epinephrine is the primary treatment, which should be injected intramuscularly as soon as anaphylaxis is suspected. Adjunct treatments include antihistamines and corticosteroids to prevent biphasic reactions. Ongoing research focuses on sublingual epinephrine and anti-IgE antibodies to improve treatment and prevention.
The document discusses TNM staging, an anatomic cancer staging system that describes the extent of the primary tumor (T), involvement of regional lymph nodes (N), and presence of distant metastasis (M). It was first reported in 1940 and adapted by the International Union Against Cancer in 1968. The TNM classification by UICC and AJCC is designed for squamous cell carcinomas of mucosal sites. The classification considers the clinical, pathological, retreatment, and autopsy extent of cancer.
ESPP presentation to EU Waste Water Network, 4th June 2024 “EU policies driving nutrient removal and recycling
and the revised UWWTD (Urban Waste Water Treatment Directive)”
ESR spectroscopy in liquid food and beverages.pptxPRIYANKA PATEL
With increasing population, people need to rely on packaged food stuffs. Packaging of food materials requires the preservation of food. There are various methods for the treatment of food to preserve them and irradiation treatment of food is one of them. It is the most common and the most harmless method for the food preservation as it does not alter the necessary micronutrients of food materials. Although irradiated food doesn’t cause any harm to the human health but still the quality assessment of food is required to provide consumers with necessary information about the food. ESR spectroscopy is the most sophisticated way to investigate the quality of the food and the free radicals induced during the processing of the food. ESR spin trapping technique is useful for the detection of highly unstable radicals in the food. The antioxidant capability of liquid food and beverages in mainly performed by spin trapping technique.
The use of Nauplii and metanauplii artemia in aquaculture (brine shrimp).pptxMAGOTI ERNEST
Although Artemia has been known to man for centuries, its use as a food for the culture of larval organisms apparently began only in the 1930s, when several investigators found that it made an excellent food for newly hatched fish larvae (Litvinenko et al., 2023). As aquaculture developed in the 1960s and ‘70s, the use of Artemia also became more widespread, due both to its convenience and to its nutritional value for larval organisms (Arenas-Pardo et al., 2024). The fact that Artemia dormant cysts can be stored for long periods in cans, and then used as an off-the-shelf food requiring only 24 h of incubation makes them the most convenient, least labor-intensive, live food available for aquaculture (Sorgeloos & Roubach, 2021). The nutritional value of Artemia, especially for marine organisms, is not constant, but varies both geographically and temporally. During the last decade, however, both the causes of Artemia nutritional variability and methods to improve poorquality Artemia have been identified (Loufi et al., 2024).
Brine shrimp (Artemia spp.) are used in marine aquaculture worldwide. Annually, more than 2,000 metric tons of dry cysts are used for cultivation of fish, crustacean, and shellfish larva. Brine shrimp are important to aquaculture because newly hatched brine shrimp nauplii (larvae) provide a food source for many fish fry (Mozanzadeh et al., 2021). Culture and harvesting of brine shrimp eggs represents another aspect of the aquaculture industry. Nauplii and metanauplii of Artemia, commonly known as brine shrimp, play a crucial role in aquaculture due to their nutritional value and suitability as live feed for many aquatic species, particularly in larval stages (Sorgeloos & Roubach, 2021).
Nucleophilic Addition of carbonyl compounds.pptxSSR02
Nucleophilic addition is the most important reaction of carbonyls. Not just aldehydes and ketones, but also carboxylic acid derivatives in general.
Carbonyls undergo addition reactions with a large range of nucleophiles.
Comparing the relative basicity of the nucleophile and the product is extremely helpful in determining how reversible the addition reaction is. Reactions with Grignards and hydrides are irreversible. Reactions with weak bases like halides and carboxylates generally don’t happen.
Electronic effects (inductive effects, electron donation) have a large impact on reactivity.
Large groups adjacent to the carbonyl will slow the rate of reaction.
Neutral nucleophiles can also add to carbonyls, although their additions are generally slower and more reversible. Acid catalysis is sometimes employed to increase the rate of addition.
Or: Beyond linear.
Abstract: Equivariant neural networks are neural networks that incorporate symmetries. The nonlinear activation functions in these networks result in interesting nonlinear equivariant maps between simple representations, and motivate the key player of this talk: piecewise linear representation theory.
Disclaimer: No one is perfect, so please mind that there might be mistakes and typos.
dtubbenhauer@gmail.com
Corrected slides: dtubbenhauer.com/talks.html
ANAMOLOUS SECONDARY GROWTH IN DICOT ROOTS.pptxRASHMI M G
Abnormal or anomalous secondary growth in plants. It defines secondary growth as an increase in plant girth due to vascular cambium or cork cambium. Anomalous secondary growth does not follow the normal pattern of a single vascular cambium producing xylem internally and phloem externally.
Current Ms word generated power point presentation covers major details about the micronuclei test. It's significance and assays to conduct it. It is used to detect the micronuclei formation inside the cells of nearly every multicellular organism. It's formation takes place during chromosomal sepration at metaphase.
The binding of cosmological structures by massless topological defectsSérgio Sacani
Assuming spherical symmetry and weak field, it is shown that if one solves the Poisson equation or the Einstein field
equations sourced by a topological defect, i.e. a singularity of a very specific form, the result is a localized gravitational
field capable of driving flat rotation (i.e. Keplerian circular orbits at a constant speed for all radii) of test masses on a thin
spherical shell without any underlying mass. Moreover, a large-scale structure which exploits this solution by assembling
concentrically a number of such topological defects can establish a flat stellar or galactic rotation curve, and can also deflect
light in the same manner as an equipotential (isothermal) sphere. Thus, the need for dark matter or modified gravity theory is
mitigated, at least in part.
The ability to recreate computational results with minimal effort and actionable metrics provides a solid foundation for scientific research and software development. When people can replicate an analysis at the touch of a button using open-source software, open data, and methods to assess and compare proposals, it significantly eases verification of results, engagement with a diverse range of contributors, and progress. However, we have yet to fully achieve this; there are still many sociotechnical frictions.
Inspired by David Donoho's vision, this talk aims to revisit the three crucial pillars of frictionless reproducibility (data sharing, code sharing, and competitive challenges) with the perspective of deep software variability.
Our observation is that multiple layers — hardware, operating systems, third-party libraries, software versions, input data, compile-time options, and parameters — are subject to variability that exacerbates frictions but is also essential for achieving robust, generalizable results and fostering innovation. I will first review the literature, providing evidence of how the complex variability interactions across these layers affect qualitative and quantitative software properties, thereby complicating the reproduction and replication of scientific studies in various fields.
I will then present some software engineering and AI techniques that can support the strategic exploration of variability spaces. These include the use of abstractions and models (e.g., feature models), sampling strategies (e.g., uniform, random), cost-effective measurements (e.g., incremental build of software configurations), and dimensionality reduction methods (e.g., transfer learning, feature selection, software debloating).
I will finally argue that deep variability is both the problem and solution of frictionless reproducibility, calling the software science community to develop new methods and tools to manage variability and foster reproducibility in software systems.
Exposé invité Journées Nationales du GDR GPL 2024
Remote Sensing and Computational, Evolutionary, Supercomputing, and Intellige...University of Maribor
Slides from talk:
Aleš Zamuda: Remote Sensing and Computational, Evolutionary, Supercomputing, and Intelligent Systems.
11th International Conference on Electrical, Electronics and Computer Engineering (IcETRAN), Niš, 3-6 June 2024
Inter-Society Networking Panel GRSS/MTT-S/CIS Panel Session: Promoting Connection and Cooperation
https://www.etran.rs/2024/en/home-english/
2. • It is a cone-shaped hollow muscular organ which pumps blood to the
body and back.
• It has weight about 250-300 grams.
• Size is that of a fist: 12cm length, 8cm wide, 6cm thick
• Location: -in middle mediastinum.
-1/3rd to right of midsternal plane and 2/3rd to left of it.
-posterior to body of sternum and 2nd-6th costal cartilages.
-anterior to vertebral column at level of T5-T8
-superior to superior surface of diaphragm.
3. • Base -quadrilateral directed upward, backward and posteriorly
-made of –left atrium
--parts of right atrium
• Apex –directed forward, downward and to left
-made of –parts of left ventricle
4. • 4 Surfaces: sternocostal/anterior surface- consist of right ventricle, some right atrium, some left ventricle.
diaphragmatic/inferior surface- consist of left ventricle, some right ventricle.
left pulmonary surface- consist of left atrium and left ventricle.
right pulmonary surface- consist of right atrium.
• 4 Margins: right margin
left margin
inferior/ acute margin- between anterior and diaphragmatic surfaces
obtuse margin- between anterior and left pulmonary surfaces
• 4 Grooves: coronary sulci- divide atria from ventricles
interatrial groove- divide left and right atria
interventricular grooves - anterior
- posterior
5. FUNCTION
• Pumps blood throughout the body via the circulatory system.
• Supply oxygenated blood with nutrients to tissues.
• Remove carbon dioxide and other wastes therefore receive
deoxygenated blood from body.
6. HEART WALL
• The Heart has three layers from inside to
outside: endocardium, myocardium,
epicardium.
• All these are surrounded by a double-
membrane sac of Pericardium.
7. PERICARDIUM AND EPICARDIUM
• It has 2 components:
• 1) Fibrous pericardium- outer tough connective tissue
• 2) Serous pericardium- inner thin layer, has 2 layers – Parietal layer- line
inner surface of fibrous pericardium
--Visceral layer-
attached to heart {EPICARDIUM}
• In between these two present the pericardial cavity having serous fluid.
• It allow lubrication of heart for friction-free movements.
• Prevent overfilling of heart with blood.
8. MYOCARDIUM
• The middle layer of the heart wall, thickest
• Cardiac muscle- involuntary striated muscle tissue surrounded by
collagen.
• The cardiac muscle pattern- muscle cells swirl and spiral around
the chambers of the heart, with the outer muscles forming a
figure 8 pattern around the atria and around the bases of the
great vessels and the inner muscles, forming a figure 8 around
the two ventricles and proceeding toward the apex. This complex
swirling pattern allows the heart to pump blood more effectively
9. ENDOCARDIUM
• The innermost layer.
• Lining of simple squamous epithelium.
• Covers heart chambers and valves and is continuous with the
endothelium of the veins and arteries of the heart.
• Secrete Endothelin- regulate contraction of the myocardium.
• Conduction system is present here.
10. CHAMBERS
• Heart has 4 chambers divided by the grooves, septum and valves.
• Right Heart: right atrium and right ventricle
• Left Heart: left atrium and left ventricle
• There are interatrial septum, interventricular septum, and
atrioventricular septum.
• There are bicuspid (mitral) valve, tricuspid (bazian) valve, aortic valve and
pulmonary valve.
11. RIGHT HEART
• Right atrium is separated by right ventricle by atrioventricular septum and
tricuspid valve (ant., septal, post cusps).
• Right Atrium: has right auricle, pectinate muscles around wall
-has opening of inferior and superior vena cava, coronary sinus
- in interatrial septum, Fossa Ovalis is present.
• Right Ventricle: has papillary muscles
- has chordae tendineae which attach to tricuspid valve
-receive blood from right atrium and pass to pulmonary trunk
-semilunar pulmonary valve (right, left, ant. Cusps) is present at
opening of pulmonary trunk
12. LEFT HEART
• Left atrium is separated from left ventricle by atrioventricular septum and
bicuspid valve (ant , post cusps).
• Left Atrium: has left auricle, pectinate muscles around wall
- has opening of pulmonary veins carrying oxygenated blood
• Left Ventricle: has papillary muscles
- has chordae tendineae attached to bicuspid valve
-receive blood from left atrium and pass to aorta
-semilunar aortic valve (right, left, post cusps) is present at
opening of aorta
- wall is 3 times thicker than of right ventricle
13.
14. CIRCULATORY SYSTEM
• It include heart, lungs and vessels.
• The Heart has double circulation: pulmonary circulation and
systemic circulation
15. PULMONARY CIRCULATION
• Begin from right ventricle ->> deoxygenated blood goes through pulmonary arteries ->> to lungs ->> oxygenation occur and
waste and carbon dioxide exhaled from body ->> oxygenated blood goes through pulmonary veins ->> to left atrium.
16. SYSTEMIC CIRCULATION
• Begin from left ventricle ->> oxygenated blood goes through
aorta ->> to body ->> transfer oxygen and nutrients to tissues
and become deoxygenated ->> deoxygenated blood goes
through inferior and superior vena cava and coronary sinus -
>> to right atrium.
17. CONDUCTION SYSTEM OF HEART
• Cardiac muscle cells have capacity of generating self-impulse.
• 1st Sino-Atrial Node: pacemaker, located at upper right corner of
right atrium, generate action potential and cause atrial systole.
• 2nd Atrio-Ventricular Node: located in right atrium near interatrial
septum, delay the signal.
• Between these 2 are present internodal pathways.
• 3rd Bundle of Hiss: AV bundle, located in interventricular septum, has
right and left bundle branches.
• 4th Purkinje Fibers: located in right and left ventricles, cause
ventricular systole.
18. CARDIAC CYCLE• Sequence of events that occurs when the heart beats.
• One cardiac Cycle is of 0.8 seconds.
• As the heart beats, it circulates blood through pulmonary and systemic
circuits of the body.
• There are two phases of the cardiac cycle: systolic and diastolic
• For 1st 0.1 sec. – atrial systole; rest 0.7 sec. – atrial diastole,
• after 0.1 sec, up to 0.3 sec. – ventricular systole; rest 0.5 sec. –
ventricular diastole
• Represented by ECG
• During systole- semilunar valves are open and atrioventricular valves are
closed. Closing of atrioventricular valves produce 1st heart sound ‘LUB’.
• During diastole- atrioventricular valves are open and semilunar valves
are closed. Closing of semilunar valves produce 2nd heart sound ‘DUB’.
19.
20. VASCULATURE OF HEART
• Arteries:
• 1) Right coronary artery- supply right atrium and
posterior surface of both ventricles.
• Branches- marginal artery
- posterior interventricular artery
• 2) Left coronary artery- supply left atrium and ventricle.
• Branches- circumflex artery
- anterior interventricular artery
21. • Veins:
• Coronary sinus- receive blood from – great cardiac vein
- anterior cardiac vein
- middle cardiac vein
- small cardiac vein
22. INNERVATION
• Vagus nerve
• Sympathetic trunk
• These nerves form a network of nerves that lies over
the heart called the cardiac plexus.
23. CLINICAL CASES
• Heart Arrhythmia :
• Condition of irregular heart beat.
• Causes- Coronary artery disease.
-High blood pressure.
-cardiomyopathy
-Valve disorders.
-Electrolyte imbalances in the blood, such as
sodium or potassium.
24. • Cardiogenic Shock:
• condition in which heart suddenly can't pump enough blood to meet body's needs.
• Causes- damage to heart's right ventricle, which sends blood to lungs to receive oxygen.
- myocardial infarction
-pulmonary embolism
-pericardial tamponade
-sudden valvular regurgitation
-inability of heart muscle to work properly
-ventricular tachycardia.
25. • Keshan disease:
• congestive cardiomyopathy caused by a combination of dietary
deficiency of selenium and the presence of a mutated strain of
Coxsackievirus.
• Found in the areas with low selenium in the soil.
• Can cause- hypothyroidism, including extreme fatigue, mental
slowing, goiter, cretinism, and recurrent miscarriage
26. • Eisenmenger's syndrome:
• long-standing left-to-right cardiac shunt in interventricular
septum caused by a congenital heart defect causes pulmonary
hypertension
• Result into- Cyanosis
-High red blood cell count
-clubbed finger tips
-Heart failure
-Abnormal heart rhythms
-Iron deficiency
-Kidney problems
-Stroke