Circulatory Syatem - Frog 1.pptx
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The document describes the circulatory system of frogs, noting that frogs have a three-chambered heart consisting of two atria that receive blood and a single ventricle. It explains that unlike human hearts, frog hearts have a single ventricle and mix oxygenated and deoxygenated blood, while human hearts are four-chambered and have separate oxygenated and deoxygenated blood flow. The document provides details on the structure and functioning of the frog heart, including its chambers, veins and arteries involved in blood flow.
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2. DEFINITION OF OSMOREGULATION
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4. CLASSIFICATION OF INVERTEBRATES ON THE BASIS OF 5. OSMOREGULATION
(I) OSMOCONFORMERS
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6. MECHANISMS OF OSMOREGULATION
7. OSMOREGULATION IN FRESH WATER INVERTEBRATES
8. OSMOREGULATION IN MARINE WATER INVERTEBRATES
9. CONCLUSION
10.REFERENCE
for more refer to Faunafondness.com
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Evolutionary change in heart of vertebrates
Heart is situated ventral to the oseophagus in the pericardial section of the coelom.
Heart is a highly muscular pumping organ that pumps blood into arteries and sucks it back through the veins.
In vertebrates it has undergone transformation by twisting from a straight tube to a complex multi-chambered organ.
. There has been an increase in the number of chambers in heart during evolution of vertebrates.
The heart is covered by a transparent protective covering, called pericardium. It is a single layer in fish.
Within pericardium there is a pericardial fluid, protects the heart from the external injury.
The evolution of the heart is based on the separation of oxygenated blood from deoxygenated blood for efficient oxygen transport.
CARDIOVASCULAR SYSTEM.pptx
The cardiovascular system circulates blood throughout the body via the heart and blood vessels. The heart is a hollow, muscular organ located in the chest that pumps blood through two circuits: systemic circulation and pulmonary circulation. Systemic circulation pumps oxygenated blood from the heart to the body and returns deoxygenated blood to the heart. Pulmonary circulation pumps deoxygenated blood from the heart to the lungs to be oxygenated and returns oxygenated blood to the heart. The cardiovascular system is regulated by short term mechanisms like the autonomic nervous system and long term mechanisms like the renin-angiotensin-aldosterone system to maintain normal blood pressure.
Circulatory System
The document provides an overview of the cardiovascular system. It discusses the main components which include the heart and blood vessels. The heart is made up of four chambers - two atria and two ventricles separated by valves. Blood flows from the heart through arteries to the body and returns to the heart via veins. The circulatory system transports nutrients, oxygen, hormones and waste products around the body. There are two main types of blood circulation - closed circulation found in vertebrates and open circulation in invertebrates.
Cardiovascular system
The document provides information on the cardiovascular system and heart anatomy. It discusses the heart chambers, which include the right and left atria and ventricles. It also describes the major blood vessels associated with the heart and the pathway of blood flow from the heart to the lungs and throughout the body. Additionally, it covers the layers of the heart wall, heart valves that prevent backflow of blood, and the conducting system which coordinates heart contractions.
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.
Anatomy and physiology of the heart by Adeboye Oluwajuyitan
The document provides information about the anatomy and physiology of the human heart. It discusses the following key points:
1. The heart is a hollow, muscular organ located in the chest cavity that pumps blood through two circulatory loops - pulmonary circulation to the lungs and systemic circulation to the rest of the body.
2. The heart has four chambers - left and right atria receive blood, and left and right ventricles pump blood out. Valves ensure blood flows in one direction.
3. The heart's rhythm is electrically controlled by a conduction system originating in the sinoatrial node, which generates electrical signals causing coordinated heart muscle contraction and pumping of blood.
PowerPoint presentation on Cardiovascular System-1.pptx
The cardiovascular system consists of the heart, blood vessels, and blood, and its primary function is to transport nutrients and oxygen-rich blood throughout the body. The heart pumps blood through a closed loop of arteries, capillaries, and veins, delivering oxygenated blood to tissues and returning deoxygenated blood to the lungs to be re-oxygenated. Key components of the cardiovascular system include the heart, which is a hollow muscular organ that acts as a force pump to circulate blood, and a network of blood vessels including arteries, veins, and capillaries.
circulatory system mammals.ppt
The circulatory system is comprised of the heart, blood vessels, and lymph vessels. The heart pumps blood through two circuits - pulmonary circulation carries deoxygenated blood to the lungs and systemic circulation distributes oxygenated blood to the entire body. Blood vessels include arteries, which carry blood away from the heart, capillaries, which enable exchange of nutrients and waste, and veins, which return blood to the heart. The lymphatic system drains excess fluid from tissues and produces immune cells.
Human heart
The document describes the anatomy and structure of the human heart. It details the four chambers of the heart - the right and left atria which receive blood, and the right and left ventricles which pump blood out. It describes the heart valves between the chambers that prevent backflow of blood. It also discusses the layers of the heart wall, the blood supply to the heart muscles via coronary arteries, and the specialized cardiac muscle cells that make up the heart.
Circualtory system 6a.pptx
The circulatory system consists of the cardiovascular and lymph vascular systems. The cardiovascular system includes the heart and blood vessels. The heart is a four-chambered organ made of three layers that pumps blood through two circuits: pulmonary circulation to the lungs and systemic circulation to the rest of the body. Heart failure occurs when the heart can no longer pump enough blood to meet the body's needs and can be caused by conditions like coronary heart disease, high blood pressure, cardiomyopathy, arrhythmias, or heart valve problems.
Heart.pptx
The document provides a detailed overview of heart anatomy, beginning with an outline of the key topics covered. It then describes the two circles of blood circulation - pulmonary and systemic. The four chambers of the heart are explained, including the right and left atria and ventricles. Heart valves, the heart wall structure, and conducting system are defined. Coronary circulation and the vessels are outlined. Key aspects of heart topography like boundaries and valve locations are defined. Finally, the layers of the pericardium are described.
INTRODUCTION TO CVS PHYSIOLOGY-BSCN.pptx
This document provides an introduction to cardiovascular physiology, including the components and function of the circulatory system. It describes the anatomy of the heart, including the four chambers, valves, and circulation through the heart. It also discusses the coronary circulation which provides oxygenated blood to the heart muscle itself. In summary, it introduces the key structures and functions of the cardiovascular system, with a focus on the anatomy and blood flow through the heart.
Cardio system
The cardiovascular system consists of the heart and blood vessels. The heart is a muscular organ located in the chest that pumps blood through the body in a process called circulation. It has four chambers - two atria that receive blood and two ventricles that pump blood. The heart functions throughout life to circulate oxygenated blood from the lungs and nutrients throughout the body via two types of circulation - pulmonary and systemic. The cardiac cycle describes the repeating sequence of heart contraction and relaxation that pumps blood through the circulatory system.
CARDIOVASCULAR SYSTEM
The cardiovascular system includes the heart and blood vessels. The heart pumps blood into vessels that circulate it throughout the body to supply nutrients and oxygen and remove waste. The heart has four chambers - the right and left atria receive blood, and the right and left ventricles pump it out. Valves ensure blood flows in only one direction. The conduction system initiates and coordinates heart contractions. Cardiovascular disorders disrupt blood flow and heart function, while vessel disorders involve blockages or damage.
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.
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.
Cardiovascular System
The circulatory system, also called the cardiovascular system or the vascular system, is an organ system that permits blood to circulate and transport nutrients (such as amino acids and electrolytes), oxygen, carbon dioxide, hormones, and blood cells to and from the cells in the body to provide nourishment and help in fighting diseases, stabilize temperature and pH, and maintain homeostasis.
Cardiovascular system of goat
The document summarizes the anatomy of the cardio-vascular system of goats. It describes the heart which has four chambers - right atrium, right ventricle, left atrium and left ventricle. Blood enters the right atrium from the vena cava and is pumped to the right ventricle before entering the lungs via the pulmonary artery. Oxygenated blood returns from the lungs to the left atrium and is pumped to the left ventricle and then to the rest of the body via the aorta. It also outlines the major blood vessels including the aorta, anterior vena cava and posterior vena cava.
Organ system for internal transport (circulatory system)
The circulatory system transports blood, nutrients, gases, hormones, and waste products between tissues and organs of the body. It consists of the heart, blood vessels, and blood. The heart pumps blood through arteries, which branch into smaller vessels and capillaries that allow for gas and nutrient exchange with tissues. Veins then return deoxygenated blood back to the heart. The circulatory system exists in both open and closed forms, with closed systems being more efficient for transport.
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- 1. DR GAYATRI HANDE ASSISTANT PROFESSOR DEPT OF ZOOLOGY SHRI SHIVAJI SCIENCE COLLEGE AMRAVATI BSC II Paper -3 S-Zoology LIFE AND DIVERSITY OF CHORDATA AND CONCEPT OF EVOLUTION
- 5. From the small intestine, the blood gathers food nutrients and delivers them to every cell. The Heart The heart pumps blood around the body. ... The right side of the heart. ... The left side of the heart. ... Blood vessels. ... Arteries. ... Capillaries. ... Veins.
- 6. Frogs are amphibians and have a closed circulatory system. Unless there is an abnormal mutation present. The frog heart has 3 chambers: two atria and a single ventricle. The right atrium receives deoxygenated blood from the blood vessels (veins) that drain the various organs of the body. The left atrium receives oxygenated blood from the lungs and skin (which also serves as a gas exchange organ in most amphibians).
- 9. CIRCULATORY SYSTEM Pump blood through respiratory system Blood circulates hormones of endocrine system Direct connection to lymphatic system Blood transports to nutrients to muscular system
- 10. Externally heart looks like a triangular structure. It is reddish color. It is 3 chambered besides sinus venosus and truncus arteriosus.
- 11. External Structure of Frog’s Heart Heart of frog is dark red colored conical muscular organ situated mid-ventrally in the anterior part of the body cavity in between two lungs. The heart is enclosed in two membranes- an inner epicardium and outer pericardium.
- 12. What is the pericardium? The pericardium is a thin sac that surrounds heart. It protects and lubricates heart and keeps it in place within chest. Problems can occur when the pericardium becomes enflamed or fills with fluid. The swelling can damage your heart and affect its function.
- 14. The space between these two layers is called pericardial cavity. It is filled with pericardial fluid which performs Protects the heart from mechanical injury. Keeps the heart moist Allows the free movement during beating. Also keeps in keeping the heart suspended in its proper position.
- 17. Its anterior end is broad and posterior end is somewhat pointed. The anterior broader part is called auricles whereas the posterior part is called ventricles. Auricles are two chambered: left and right auricles. These auricles are demarcated externally by very faint longitudinal inter auricular groove. So it externally appears one.
- 18. Ventricle is single chambered. It is most important part of the heart. It is conical in shape with thick muscular walls. It is clearly separated from auricles by coronary sulcus. Heart of frog consists of two additional chambers:
- 19. 1. Sinus venosus- On the dorsal surface of heart, two precaval and a postcaval fused to form wide chamber called sinus venosus. It is thin walled dark colored triangular structure which opens into the right auricle. It receives impure blood from all parts of the body and pours it into right auricle.
- 20. 2. Truncus arteriosus It is a tubular structure arise from the right side of the ventricle is called truncus arteriosus. It extends forward over the right auricle and finally divides into two branches to form aortic trunks. Aortic trunk consists of- carotid arch, systemic arch and pulmonary arch.
- 21. Frog's heart where there is no partition to separate oxygenated and deoxygenated bloods. Human heart is four chambered with completely separate double circulation. Explanation: Frog's heart has two accessory chambers, Sinus Venosus for receiving blood from body and Conus Arteriosus for send in the blood out from heart. Human heart does not possess such chambers. Blood from body enters directly in right auricle and blood is pumped out by two ventricles. Frog's heart has one ventricle, hence deoxygenated blood from body mixes with the oxygenated blood coming from lungs.
- 26. Functions of the Frog Heart • Heart - Pumping organ of the circulatory system (has 3 chambers). • Anterior Vena Cava - Large vein that carries blood from the anterior part of the body toward the heart. • Posterior Vena Cava - Large vein that carries blood from the posterior part of the body towards the heart. • Sinus Venosus - Sac that receives blood from the vena cava
- 27. Functions of the Frog Heart Right Atrium - Chamber of the frogs heart which receives blood from the sinus venosus. Left Atrium - The chamber of the heart that receives blood from the lungs. Pulmonary Veins - The blood vessels that carry blood form the lungs to the left atrium. Ventricle - Chamber of a frog’s heart that pumps blood out of the heart to the lungs and other parts of the body. Truncus Arteriosis - Large artery in a frog that carries blood away from the ventricle into branches that lead to all parts of the body.