How human heart works
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The heart has two pumps, one on each side, that work together to circulate blood through the body. The right side receives deoxygenated blood from veins and pumps it to the lungs, and the left side receives oxygenated blood from the lungs and pumps it into arteries throughout the body. Valves between the atria and ventricles and between the ventricles and arteries ensure blood flows in only one direction through this cycle to efficiently deliver oxygenated blood from the lungs to tissues.
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Heart related disorders
The document provides information about heart disorders. It defines the heart and its functions. Several types of heart disorders are described, including coronary artery disease, hypertension, restrictive cardiomyopathy, alcoholic heart disease, heart attack, heart failure, heart valve disease, and heart muscle disease. Causes, symptoms, and how each develops are explained for the main heart disorders.
Structure and function of heart by Shashank Bandre Class 10 CBSE
In this slide you will get information about the structure and mechanism of heart ................ :) :) Hope it will help you....... :)
DOUBLE CIRCULATION - POWERPOINT
The document discusses the concept of double circulation, where blood flows through the heart twice in one cycle. It describes double circulation as consisting of pulmonary circulation, where deoxygenated blood flows from the heart to the lungs to become oxygenated, and systemic circulation, where oxygenated blood flows from the heart to the rest of the body and becomes deoxygenated before returning to the heart. The document is a PowerPoint presentation about double circulation presented by Sangeetha K.P.
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The lymphatic system consists of lymph fluid, lymph vessels, and lymphatic organs that include lymph nodes and tonsils. Lymph is formed from interstitial fluid and contains water, proteins, cells, and other components. It flows from lymph capillaries through collecting vessels and trunks into the thoracic duct or right lymphatic duct and returns to the bloodstream. The lymphatic system helps remove excess fluid from tissues, transports fat and proteins, and plays a role in immune defense and absorption of nutrients. Disruptions in lymph flow can cause edema or other pathologies like lymphadenopathy or elephantiasis.
Powerpoint Presentation by Aswathy AR
The circulatory system transports blood throughout the body via circulation. Blood carries oxygen, nutrients, hormones and waste products as it circulates from the heart through arteries and veins. The human circulatory system uses double circulation, where blood is pumped from the heart to the lungs to become oxygenated, then to tissues throughout the body, and back to the heart. This double circulation allows for gas and nutrient exchange to occur efficiently between the blood and body tissues.
Blood vessels
There are three main types of blood vessels: arteries, veins, and capillaries. The total length of all blood vessels in an adult human is over 100,000 kilometers. Arteries carry oxygenated blood away from the heart to tissues and have thick, elastic walls to withstand high blood pressure. Veins carry deoxygenated blood back to the heart at low pressure and contain valves to prevent backflow.
Blood vessels: Arteries, Veins and Capillaries
It is one of the circulatory systems. This explains the roles of arteries, veins and capillaries. It also differentiate between the arteries, veins and capillaries. This slide also explained the pulmonary circuit and systemic curcuit. This is an interesting notes and easy to be understand.
ppt on heart
The heart is a muscular organ about the size of a closed fist located in the thoracic cavity. It has three layers: an outer epicardium, middle myocardium that is made of cardiac muscle, and inner endocardium. The heart pumps deoxygenated blood to the lungs and oxygenated blood throughout the body in two circuits - the pulmonary and systemic circuits. Blood flows through the heart in one direction, entering the right atrium and exiting the left ventricle, driven by cardiac muscle and prevented from backflow by valves.
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Heart related disorders
The document provides information about heart disorders. It defines the heart and its functions. Several types of heart disorders are described, including coronary artery disease, hypertension, restrictive cardiomyopathy, alcoholic heart disease, heart attack, heart failure, heart valve disease, and heart muscle disease. Causes, symptoms, and how each develops are explained for the main heart disorders.
Structure and function of heart by Shashank Bandre Class 10 CBSE
In this slide you will get information about the structure and mechanism of heart ................ :) :) Hope it will help you....... :)
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The document discusses the concept of double circulation, where blood flows through the heart twice in one cycle. It describes double circulation as consisting of pulmonary circulation, where deoxygenated blood flows from the heart to the lungs to become oxygenated, and systemic circulation, where oxygenated blood flows from the heart to the rest of the body and becomes deoxygenated before returning to the heart. The document is a PowerPoint presentation about double circulation presented by Sangeetha K.P.
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The lymphatic system consists of lymph fluid, lymph vessels, and lymphatic organs that include lymph nodes and tonsils. Lymph is formed from interstitial fluid and contains water, proteins, cells, and other components. It flows from lymph capillaries through collecting vessels and trunks into the thoracic duct or right lymphatic duct and returns to the bloodstream. The lymphatic system helps remove excess fluid from tissues, transports fat and proteins, and plays a role in immune defense and absorption of nutrients. Disruptions in lymph flow can cause edema or other pathologies like lymphadenopathy or elephantiasis.
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Blood vessels
There are three main types of blood vessels: arteries, veins, and capillaries. The total length of all blood vessels in an adult human is over 100,000 kilometers. Arteries carry oxygenated blood away from the heart to tissues and have thick, elastic walls to withstand high blood pressure. Veins carry deoxygenated blood back to the heart at low pressure and contain valves to prevent backflow.
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It is one of the circulatory systems. This explains the roles of arteries, veins and capillaries. It also differentiate between the arteries, veins and capillaries. This slide also explained the pulmonary circuit and systemic curcuit. This is an interesting notes and easy to be understand.
ppt on heart
The heart is a muscular organ about the size of a closed fist located in the thoracic cavity. It has three layers: an outer epicardium, middle myocardium that is made of cardiac muscle, and inner endocardium. The heart pumps deoxygenated blood to the lungs and oxygenated blood throughout the body in two circuits - the pulmonary and systemic circuits. Blood flows through the heart in one direction, entering the right atrium and exiting the left ventricle, driven by cardiac muscle and prevented from backflow by valves.
Blood circulatory system
The Human Blood Circulatory system
Humans and other vertebrates have a closed blood circulatory system:
This system consists of
the heart (pump),
series of blood vessels
the blood that flows through them.
This means that circulating blood is pumped through a system of vessels.
Functions of Human Blood Circulatory System
1. oxygen
2. carbon dioxide
3 nutrients
4. water
5. ions
6. hormones
7. antibodies
8. metabolic wastes
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.
Cardiovascular System
The human heart heart length, width, and thickness are 12 cm, 8.5 cm, and 6 cm, respectively. In addition, the mean weight of the heart is 280-340 g in males and 230-280 g in females.
the cardiovascular system and Physiology of heart
The document discusses the cardiovascular system and physiology of the heart. It describes the components of the cardiovascular system including the heart, blood vessels, and blood. It explains the basic functions of these parts, including that the heart acts as a pump to circulate blood through two circuits - the pulmonary and systemic circulations. It also provides details on the anatomy and functions of the heart chambers and valves, as well as blood flow, vessels, heart sounds, and blood characteristics.
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The heart is a hollow muscular organ located in the thorax between the lungs. It has 4 chambers - 2 atria that receive blood and 2 ventricles that pump blood out of the heart. The right side receives deoxygenated blood from the body and pumps it to the lungs, while the left side receives oxygenated blood from the lungs and pumps it out to the body. The heart is surrounded by a membrane called the pericardium which restricts its movement and acts as a lubricated sac. It has 4 valves that ensure one-way blood flow through the heart chambers. The heart is supplied by the left and right coronary arteries and its venous drainage occurs through the coronary sinus into the right atrium.
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The document summarizes blood clotting (coagulation). It identifies that there are 13 clotting factors involved in the process by which blood loses fluid and forms a jelly-like clot after leaving the body. The key steps are: 1) formation of a prothrombin activator, 2) conversion of prothrombin to thrombin, and 3) conversion of fibrinogen to fibrin to form the clot. The clotting factors work together in a cascade through positive feedback loops to activate thrombin and fibrinogen in the clotting process.
Anatomy of the heart
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.
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The heart is the pump responsible for maintaining adequate circulation of oxygenated blood around the vascular network of the body. It is a four-chamber pump, with the right side receiving deoxygenated blood from the body at low presure and pumping it to the lungs (the pulmonary circulation) and the left side receiving oxygenated blood from the lungs and pumping it at high pressure around the body (the systemic circulation).
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The document summarizes key aspects of cardiovascular system anatomy and physiology including:
1. It describes the basic structure and function of the heart including the four chambers, valves, and blood vessels that carry blood to and from the heart.
2. It explains the cardiac cycle and how electrical signals coordinate heart muscle contraction and relaxation.
3. It discusses how the heart rate and arterial blood pressure are regulated by neural and hormonal factors to adjust cardiac output to meet the body's needs.
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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
The heart begins as a single tube in the embryo but undergoes remodeling to form four chambers. Valves develop within the heart to ensure blood flows in only one direction. The heart's electrical conduction system also develops to coordinate the contractions of the atria and ventricles. By adulthood, the heart has separate pumping systems for circulating blood to the lungs and body with valves that prevent backflow between chambers.
Cardiac cycle
The cardiac cycle begins with the spontaneous generation of an action potential in the sinus node which triggers contractions that move through the heart. It consists of systole, where the heart contracts to pump blood, and diastole, where the heart relaxes and refills with blood. Each cycle takes approximately 0.8 seconds and involves coordinated opening and closing of valves between the atria and ventricles and between the ventricles and arteries. Pressure and volume curves change dynamically throughout the cycle as the heart contracts and relaxes, pumping blood through the body.
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Diffusion and osmosis
Osmosis will occur and water will diffuse into the cells, causing them to swell.
Cardiovascular physiology
The physiology of the Heart and blood vessels. the different actions of the heart and also the properties of the cardiac muscles.
Atherosclerosis
Arteriosclerosis occurs when arteries become thick and stiff due to a build-up of plaque, restricting blood flow. Atherosclerosis is a specific type involving a build-up of fats, cholesterol, and other substances in artery walls. It can affect arteries throughout the body, including those in the heart, legs, kidneys and brain. Symptoms vary depending on location but include chest pain, leg pain, fatigue and confusion. Risk factors include age, gender, family history, smoking, diabetes and high cholesterol. Treatment focuses on lifestyle changes and medications, while severe cases may require procedures like stenting or bypass surgery to improve blood flow.
Human 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.
Cardiovascular System
The cardiovascular system consists of the heart and blood vessels. The heart has four chambers and uses electrical signals to contract in a rhythmic pattern to pump blood throughout the body. The autonomic nervous system and hormones regulate heart rate and function. Diseases that can affect the cardiovascular system include arrhythmias, congenital defects, degenerative conditions like heart disease or failure, inflammatory issues, and vascular or valvular disorders. Treatments involve drug therapies, surgeries like bypass or transplantation, and other procedures like stents, pacemakers, or defibrillation.
Blood anatomy
Blood is composed of plasma and different types of cells that circulate through the body. It transports oxygen, nutrients, hormones, and removes waste. The three main cell types are red blood cells, white blood cells, and platelets. Red blood cells carry oxygen and carbon dioxide, white blood cells fight infection, and platelets help with clotting to stop bleeding. Plasma is the liquid portion that carries cells, proteins, salts, and other substances throughout the body. Some disorders of blood include anemia, leukemia, and thalassemia.
A red blood cell enters the right atrium from the superior vena cava..pdf
A red blood cell enters the right atrium from the superior vena cava. In order, list ALL the
structures it passes through to reach the right coronary artery. Be sure to include ALL the
chambers of the heart, and the valves of the heart that it passes through. A red blood cell enters
the celiac trunk from the aorta. In order, list ALL the structures it passes through to reach the
right carotid artery. Be sure to include ALL the chambers of the heart, and the valves of the heart
that it passes through.
Solution
Q.No 1
Heart contains four chambers, two atria and a couple of ventricles. The blood that is definitely
returned to the right atrium is deoxygenated and s passed into the right ventricle to be pumped
through the pulmonary artery to the lungs for reoxygenation and elimination of carbon dioxide.
The left atrium receives newly oxygenated blood through the lungs with the pulmonary veins,
that may be passed throughout the strong left ventricle to be pumped through the aorta to the
various organs of one\'s body.
Superior Vena Cava
The superior vena cava is one of these two main veins bringing de-oxygenated blood from the
entire body to heart. Veins through the head and upper body feed into the superior vena cava,
which empties into the right atrium of the heart.
Inferior Vena Cava
The inferior vena cava is one of these two main veins bringing de-oxygenated blood from the
entire body to heart. Veins through the legs reducing torso feed into the inferior vena cava, which
empties into the right atrium of the heart.
Aorta
The aorta is the main single circulatory around the body. It is around the diameter from your
thumb. This vessel carries oxygen-rich blood from the left ventricle to different parts of one\'s
body.
Pulmonary Artery
The pulmonary artery is the vessel transporting de-oxygenated blood from the right ventricle to
the lungs. Perhaps the most common misconception is all arteries carry oxygen-rich blood. It
really is appropriate to classify arteries as vessels carrying blood away from the heart.
Pulmonary Vein
The pulmonary vein is the vessel transporting oxygen-rich blood through the lungs to the left
atrium. Perhaps the most common misconception is all veins carry de-oxygenated blood. It really
is appropriate to classify veins as vessels carrying blood to heart.
Papillary Muscles
The papillary muscles attach to the reduced percentage of the interior wall of one\'s ventricles.
They connect with the chordae tendineae, which attach to the tricuspid valve in the right
ventricle and the mitral valve around the left ventricle. The contraction of the papillary muscles
closes these valves. When the papillary muscles relax, the valves open.
Chordae Tendineae
The chordae tendineae are tendons linking the papillary muscles to the tricuspid valve in the
right ventricle and the mitral valve around the left ventricle. As the papillary muscles contract
and relax, the chordae tendineae transmit the resulting increase and reduce in tension to
respecti.
Anatomy of heart copy - copy
The heart is a muscular organ that pumps blood through the circulatory system. It is divided into four chambers - the left and right atria receive blood, and the left and right ventricles pump blood out. The heart contracts and relaxes in a cardiac cycle, with the ventricles relaxing to fill with blood during diastole and contracting to pump blood during systole. The heart pumps deoxygenated blood to the lungs and oxygenated blood throughout the body to supply organs and tissues with nutrients and oxygen.
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Blood circulatory system
The Human Blood Circulatory system
Humans and other vertebrates have a closed blood circulatory system:
This system consists of
the heart (pump),
series of blood vessels
the blood that flows through them.
This means that circulating blood is pumped through a system of vessels.
Functions of Human Blood Circulatory System
1. oxygen
2. carbon dioxide
3 nutrients
4. water
5. ions
6. hormones
7. antibodies
8. metabolic wastes
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.
Cardiovascular System
The human heart heart length, width, and thickness are 12 cm, 8.5 cm, and 6 cm, respectively. In addition, the mean weight of the heart is 280-340 g in males and 230-280 g in females.
the cardiovascular system and Physiology of heart
The document discusses the cardiovascular system and physiology of the heart. It describes the components of the cardiovascular system including the heart, blood vessels, and blood. It explains the basic functions of these parts, including that the heart acts as a pump to circulate blood through two circuits - the pulmonary and systemic circulations. It also provides details on the anatomy and functions of the heart chambers and valves, as well as blood flow, vessels, heart sounds, and blood characteristics.
Heart Anatomy
The heart is a hollow muscular organ located in the thorax between the lungs. It has 4 chambers - 2 atria that receive blood and 2 ventricles that pump blood out of the heart. The right side receives deoxygenated blood from the body and pumps it to the lungs, while the left side receives oxygenated blood from the lungs and pumps it out to the body. The heart is surrounded by a membrane called the pericardium which restricts its movement and acts as a lubricated sac. It has 4 valves that ensure one-way blood flow through the heart chambers. The heart is supplied by the left and right coronary arteries and its venous drainage occurs through the coronary sinus into the right atrium.
Blood clotting
The document summarizes blood clotting (coagulation). It identifies that there are 13 clotting factors involved in the process by which blood loses fluid and forms a jelly-like clot after leaving the body. The key steps are: 1) formation of a prothrombin activator, 2) conversion of prothrombin to thrombin, and 3) conversion of fibrinogen to fibrin to form the clot. The clotting factors work together in a cascade through positive feedback loops to activate thrombin and fibrinogen in the clotting process.
Anatomy of the heart
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.
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An 8th grade lesson introductory lesson on the circulatory system ... in addition to the powerpoint I had the students take their pulse at rest at the beginning of class and then again during the middle of class after having them run in place for 30 seconds
Human heart anatomy and physiology Part -1
The heart is the pump responsible for maintaining adequate circulation of oxygenated blood around the vascular network of the body. It is a four-chamber pump, with the right side receiving deoxygenated blood from the body at low presure and pumping it to the lungs (the pulmonary circulation) and the left side receiving oxygenated blood from the lungs and pumping it at high pressure around the body (the systemic circulation).
Chapter 15 - The Cardiovascular System - Part 1
The document summarizes key aspects of cardiovascular system anatomy and physiology including:
1. It describes the basic structure and function of the heart including the four chambers, valves, and blood vessels that carry blood to and from the heart.
2. It explains the cardiac cycle and how electrical signals coordinate heart muscle contraction and relaxation.
3. It discusses how the heart rate and arterial blood pressure are regulated by neural and hormonal factors to adjust cardiac output to meet the body's needs.
Anatomy of Cardiac System
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
The heart begins as a single tube in the embryo but undergoes remodeling to form four chambers. Valves develop within the heart to ensure blood flows in only one direction. The heart's electrical conduction system also develops to coordinate the contractions of the atria and ventricles. By adulthood, the heart has separate pumping systems for circulating blood to the lungs and body with valves that prevent backflow between chambers.
Cardiac cycle
The cardiac cycle begins with the spontaneous generation of an action potential in the sinus node which triggers contractions that move through the heart. It consists of systole, where the heart contracts to pump blood, and diastole, where the heart relaxes and refills with blood. Each cycle takes approximately 0.8 seconds and involves coordinated opening and closing of valves between the atria and ventricles and between the ventricles and arteries. Pressure and volume curves change dynamically throughout the cycle as the heart contracts and relaxes, pumping blood through the body.
1 Cardiovascular Disorders
The document provides an overview of cardiovascular disorders including diagnostic tests, treatment measures, specific conditions like coronary artery disease, myocardial infarction, cardiac arrhythmias, congestive heart failure, hypertension, and shock. It discusses the pathophysiology, signs and symptoms, diagnostic approach, and treatment options for each condition. Homework assignments involving case studies on specific topics are also outlined.
Diffusion and osmosis
Osmosis will occur and water will diffuse into the cells, causing them to swell.
Cardiovascular physiology
The physiology of the Heart and blood vessels. the different actions of the heart and also the properties of the cardiac muscles.
Atherosclerosis
Arteriosclerosis occurs when arteries become thick and stiff due to a build-up of plaque, restricting blood flow. Atherosclerosis is a specific type involving a build-up of fats, cholesterol, and other substances in artery walls. It can affect arteries throughout the body, including those in the heart, legs, kidneys and brain. Symptoms vary depending on location but include chest pain, leg pain, fatigue and confusion. Risk factors include age, gender, family history, smoking, diabetes and high cholesterol. Treatment focuses on lifestyle changes and medications, while severe cases may require procedures like stenting or bypass surgery to improve blood flow.
Human 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.
Cardiovascular System
The cardiovascular system consists of the heart and blood vessels. The heart has four chambers and uses electrical signals to contract in a rhythmic pattern to pump blood throughout the body. The autonomic nervous system and hormones regulate heart rate and function. Diseases that can affect the cardiovascular system include arrhythmias, congenital defects, degenerative conditions like heart disease or failure, inflammatory issues, and vascular or valvular disorders. Treatments involve drug therapies, surgeries like bypass or transplantation, and other procedures like stents, pacemakers, or defibrillation.
Blood anatomy
Blood is composed of plasma and different types of cells that circulate through the body. It transports oxygen, nutrients, hormones, and removes waste. The three main cell types are red blood cells, white blood cells, and platelets. Red blood cells carry oxygen and carbon dioxide, white blood cells fight infection, and platelets help with clotting to stop bleeding. Plasma is the liquid portion that carries cells, proteins, salts, and other substances throughout the body. Some disorders of blood include anemia, leukemia, and thalassemia.
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A red blood cell enters the right atrium from the superior vena cava..pdf
A red blood cell enters the right atrium from the superior vena cava. In order, list ALL the
structures it passes through to reach the right coronary artery. Be sure to include ALL the
chambers of the heart, and the valves of the heart that it passes through. A red blood cell enters
the celiac trunk from the aorta. In order, list ALL the structures it passes through to reach the
right carotid artery. Be sure to include ALL the chambers of the heart, and the valves of the heart
that it passes through.
Solution
Q.No 1
Heart contains four chambers, two atria and a couple of ventricles. The blood that is definitely
returned to the right atrium is deoxygenated and s passed into the right ventricle to be pumped
through the pulmonary artery to the lungs for reoxygenation and elimination of carbon dioxide.
The left atrium receives newly oxygenated blood through the lungs with the pulmonary veins,
that may be passed throughout the strong left ventricle to be pumped through the aorta to the
various organs of one\'s body.
Superior Vena Cava
The superior vena cava is one of these two main veins bringing de-oxygenated blood from the
entire body to heart. Veins through the head and upper body feed into the superior vena cava,
which empties into the right atrium of the heart.
Inferior Vena Cava
The inferior vena cava is one of these two main veins bringing de-oxygenated blood from the
entire body to heart. Veins through the legs reducing torso feed into the inferior vena cava, which
empties into the right atrium of the heart.
Aorta
The aorta is the main single circulatory around the body. It is around the diameter from your
thumb. This vessel carries oxygen-rich blood from the left ventricle to different parts of one\'s
body.
Pulmonary Artery
The pulmonary artery is the vessel transporting de-oxygenated blood from the right ventricle to
the lungs. Perhaps the most common misconception is all arteries carry oxygen-rich blood. It
really is appropriate to classify arteries as vessels carrying blood away from the heart.
Pulmonary Vein
The pulmonary vein is the vessel transporting oxygen-rich blood through the lungs to the left
atrium. Perhaps the most common misconception is all veins carry de-oxygenated blood. It really
is appropriate to classify veins as vessels carrying blood to heart.
Papillary Muscles
The papillary muscles attach to the reduced percentage of the interior wall of one\'s ventricles.
They connect with the chordae tendineae, which attach to the tricuspid valve in the right
ventricle and the mitral valve around the left ventricle. The contraction of the papillary muscles
closes these valves. When the papillary muscles relax, the valves open.
Chordae Tendineae
The chordae tendineae are tendons linking the papillary muscles to the tricuspid valve in the
right ventricle and the mitral valve around the left ventricle. As the papillary muscles contract
and relax, the chordae tendineae transmit the resulting increase and reduce in tension to
respecti.
Anatomy of heart copy - copy
The heart is a muscular organ that pumps blood through the circulatory system. It is divided into four chambers - the left and right atria receive blood, and the left and right ventricles pump blood out. The heart contracts and relaxes in a cardiac cycle, with the ventricles relaxing to fill with blood during diastole and contracting to pump blood during systole. The heart pumps deoxygenated blood to the lungs and oxygenated blood throughout the body to supply organs and tissues with nutrients and oxygen.
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Human Cardiovascular system
Human cardiovascular system, organ system that conveys blood through vessels to and from all parts of the body, carrying nutrients and oxygen to tissues and removing carbon dioxide and other wastes. It is a closed tubular system in which the blood is propelled by a muscular heart. Two circuits, the pulmonary and the systemic, consist of arterial, capillary, and venous components.
The primary function of the heart is to serve as a muscular pump propelling blood into and through vessels to and from all parts of the body. The arteries, which receive this blood at high pressure and velocity and conduct it throughout the body, have thick walls that are composed of elastic fibrous tissue and muscle cells. The arterial tree—the branching system of arteries—terminates in short, narrow, muscular vessels called arterioles, from which blood enters simple endothelial tubes (i.e., tubes formed of endothelial, or lining, cells) known as capillaries. These thin, microscopic capillaries are permeable to vital cellular nutrients and waste products that they receive and distribute. From the capillaries, the blood, now depleted of oxygen and burdened with waste products, moving more slowly and under low pressure, enters small vessels called venules that converge to form veins, ultimately guiding the blood on its way back to the heart.
Assignment on Circulation of blood
IT WILL BE HELPFUL FOR IRREGULAR STUDENTS LIKE ME. YOU MAY COPY AND PASTE IT.
The circulatory system is an organ system that permits blood and lymph circulation to transport nutrients, oxygen, carbon dioxide, hormones, blood cells, etc. to and from cells in the body to nourish it and help to fight diseases, stabilize body temperature and pH, and to maintain homeostasis.
This system may be seen strictly as a blood distribution network, but some consider the circulatory system as composed of the cardiovascular system, which distributes blood, and the lymphatic system, which returns excess filtered blood plasma from the interstitial fluid (between cells) as lymph. While humans, as well as other vertebrates, have a closed cardiovascular system (meaning that the blood never leaves the network of arteries, veins and capillaries), some invertebrate groups have an open cardiovascular system. The more primitive, diploblastic animal phyla lack circulatory systems. The lymphatic system, on the other hand, is an open system providing an accessory route for excess interstitial fluid to get returned to the blood.
Blood circulatory system (heart)
The human transport system consists of the heart and blood vessels. The heart pumps blood throughout the body using three types of valves to ensure one-way blood flow. Deoxygenated blood enters the right atrium and is pumped to the lungs for oxygenation before entering the left atrium. It is then pumped by the left ventricle through the aorta to tissues throughout the body. There are three types of blood vessels - arteries carry oxygenated blood away from the heart, veins carry deoxygenated blood toward the heart, and capillaries connect arteries and veins to exchange materials.
Cardiovascular system
The document describes the key components and functioning of the cardiovascular or circulatory system. It discusses the heart, blood vessels including arteries, veins and capillaries, blood flow, and regulation of the cardiovascular system. It also briefly mentions some common cardiovascular disorders like atherosclerosis, heart attack, and stroke.
Science 9 Circulatory System
The circulatory system consists of the heart, blood vessels, and blood. The heart pumps oxygenated blood received from the lungs through the left side and deoxygenated blood through the right side to the lungs. It has four main valves - the mitral, aortic, tricuspid, and pulmonary valves - that ensure blood flows in one direction. The circulatory system delivers oxygen and nutrients throughout the body and removes waste via a network of arteries, veins, and capillaries. It is essential for sustaining life.
The human heart activity
The document describes the anatomy and function of the human heart. It explains that the heart is a powerful muscle made up of four chambers - two upper atria and two lower ventricles. The heart pumps blood throughout the body via electrical signals that cause coordinated contractions. It details each of the heart's chambers and valves and their roles in circulating oxygenated and deoxygenated blood. Key parts discussed include the sinoatrial node, ventricles, atria, valves, arteries and veins that work together to pump blood through the heart and body.
Human heart
The human heart has four chambers - two atria that receive blood and two ventricles that pump blood. The right side receives deoxygenated blood from the body and pumps it to the lungs, while the left side receives oxygenated blood from the lungs and pumps it to the body. The heart is made of cardiac muscle that can contract regularly without fatigue. Blood returns to the heart through the vena cavae and pulmonary veins and is pumped back out through the pulmonary artery and aorta.
Human heart
The human heart has four chambers - two atria that receive blood and two ventricles that pump blood. The right side receives deoxygenated blood from the body and pumps it to the lungs, while the left side receives oxygenated blood from the lungs and pumps it to the body. The heart is made of cardiac muscle that can contract regularly without fatigue. Blood returns to the heart through the vena cavae and pulmonary veins and is pumped back out through the pulmonary artery and aorta.
How the heart works
Our heart is roughly the size of a clenched fist and is located in the middle of your chest between tow lungs, tilted more to the left. This small, fist-sized organ is one of the most critical organs.
Human Heart
The heart is a pumping organ located in the chest that continuously circulates blood through the body. It has four chambers - the two upper chambers are the atria and the two lower chambers are the ventricles. The septum separates the chambers and prevents mixing of oxygenated and deoxygenated blood. Blood flows from the right atrium to the right ventricle then to the lungs, returns oxygenated to the left atrium and left ventricle, then is pumped through the aorta to the rest of the body in a continuous cycle.
Heart Anatomy Shaikh Sameer Pharm D I year.pdf
The heart has four chambers divided into left and right sides separated by septums. The two upper chambers are the atria and the two lower chambers are the ventricles. Blood flows from the atria to the ventricles through valves and is pumped from the right ventricle to the lungs and from the left ventricle to the body. The heart receives its own blood supply from the coronary arteries which branch from the aorta.
heart of a human
The heart is a muscular organ located in the chest cavity that pumps blood throughout the body. It has two pumps - the right pump receives deoxygenated blood and sends it to the lungs, while the left pump receives oxygenated blood and pumps it out to the organs and tissues. The blood circulates through a cycle - deoxygenated blood enters the right atrium, passes to the right ventricle and is pumped to the lungs, where it releases carbon dioxide and picks up oxygen before entering the left atrium and being pumped by the left ventricle throughout the body, delivering oxygen and nutrients to tissues before returning to the heart to repeat the cycle.
L8 Cardiac Anatomy
The document describes the structure and function of the heart and circulatory system. It discusses the major veins that return deoxygenated blood to the right atrium, such as the superior and inferior vena cava. It also describes the four chambers of the heart, including the right and left atria that receive blood and the right and left ventricles that pump blood to the lungs and body. The valves such as the tricuspid and bicuspid valves prevent backflow of blood through the heart.
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A red blood cell enters the right atrium from the superior vena cava..pdf
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Anatomy and physiology of the heart by Adeboye Oluwajuyitan
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Human urinary system
The human urinary system consists of the kidneys, which filter blood and produce urine, the ureters that carry urine from the kidneys to the bladder, the bladder which stores urine, and the urethra that passes urine outside the body. The kidneys contain nephrons that filter waste from the blood to form urine, while reabsorbing useful substances back into blood. Urine is composed mainly of water along with urea and minerals. Kidney stones can sometimes form from calcium, phosphate, or uric acid in the urinary system.
Types of blood cells
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Exchange of gases
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How air enters the lungs
The document discusses the process of inhalation and exhalation. During inhalation, the diaphragm contracts and moves down while muscles attached to the ribs pull the ribs outward. This increases the chest cavity size and allows the lungs to expand and inhale oxygen-rich air. During exhalation, the diaphragm and rib muscles relax, decreasing the chest cavity size and causing the lungs to contract and exhale carbon dioxide-rich air out of the body.
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Digestive system of a cow
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Human digestive system
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Health Education
Health is defined by the World Health Organization as a state of complete physical, mental and social well-being, not just the absence of disease. Health education is important as it helps children develop healthy habits and attitudes that can be maintained throughout life. Health education also benefits the community by educating students and parents on health knowledge and practices. Maintaining good health requires proper care of the body through nutrition, cleanliness, exercise, rest, and disease prevention - all of which can be achieved through health education. Factors like social environment, physical environment, individual behaviors and characteristics, income, education, genetics, and access to health services can all impact a person's overall health.
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Current problems of Indian Education---philosophy S2 ppt
This document discusses the current problems facing the Indian education system at the primary, secondary, and higher levels. At the primary level, key issues include apathy of parents, overpopulation, lack of resources, and wastage/stagnation of students. Secondary education struggles with heavy curriculum, rigid timetables, high costs, and an exam-oriented approach. For higher education, the document notes problems like expensive and inefficient colleges, low student effort, high dropout rates, teaching quality issues, and financing challenges. Suggested remedies include improving teacher training, making curriculum more flexible and child-centered, reforming exams, and addressing socioeconomic barriers to education.
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computer simulation, blended learning,educational podcasts
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Structure of chloroplast
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Structure of chloroplast
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How human heart works
- 1. How the heart works PRESENTED BY, ANCY.A.R NATURAL SCIENCE CHRIST NAGAR COLLEGE OF EDUCATION
- 2. The heart actually consists of two pumps working together-one on the left side and one on the right. The two atria contract first, pushing blood into the two ventricles. The atria then relax and the ventricles contract to push blood into blood vessels.
- 4. Large veins carry deoxygenated blood from different parts of the body to the right atrium of the heart, which relaxes to receive the blood. The right atrium then contracts and pours this blood into the right ventricle, which relaxes to receive it. The right ventricle contracts and pours deoxygenated blood into the pulmonary arteries, which carry it to the lungs. Exchange of gases takes place in the lungs and oxygen- rich blood is sent back to the left side of the heart.
- 5. The left atrium relaxes to receive oxygenated blood from the pulmonary veins, which bring blood from the lungs. The left atrium then contracts and pours oxygenated blood into the left ventricle, which relaxes to receive it. The left ventricle then contracts and pours oxygenated blood into the aorta, which is the largest artery in the body. The aorta branches into arteries that supply oxygenated blood to all the cells in the body.
- 6. There are valves between the atrium and ventricle , and between the ventricle and artery, on both sides of the heart . They ensures that blood flows only from the atrium to the ventricle and from the ventricle into the artery, and not in the opposite direction.
- 7. Circulation Through Human Heart Body blood enters RIGHT SIDE of HEART Right atrium ----> right ventricle ----> Pulmonary artery ----> alveoli in lungs----> oxygenated blood --> Pulmonary Veins ----> Left Atrium. ----> Left Ventricle ----> blood leaves through Aorta (first artery) ---> flows to body