Anatomy and physiology of human heart pdf

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anatomy and physiology of human heart pdf

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The cardiovascular system can be thought of as the transport system of the body. This system has three main components: the heart , the blood vessel and the blood itself.

Cardiovascular system (heart) anatomy

This chapter covers the internal and external anatomy of the heart, its positioning within the thorax, and its basic function. Briefly, the heart is a muscular pump, located in the protective thorax, which serves two functions: 1 collect blood from the tissues of the body and pump it to the lungs and 2 collect blood from the lungs and pump it to all the tissues of the body. The right atrium and ventricle collect blood from the body and pump it to the lungs, and the left atrium and ventricle collect blood from the lungs and pump it throughout the body.

There is a one-way flow of blood through the heart which is maintained by a set of four valves tricuspid, bicuspid, pulmonary, and aortic. The tissues of the heart are supplied with nourishment and oxygen by a separate vascular supply committed only to the heart; the arterial supply to the heart arises from the base of the aorta as the right and left coronary arteries, and the venous drainage is via cardiac veins that return deoxygenated blood to the right atrium.

Skip to main content. This service is more advanced with JavaScript available. Advertisement Hide. This is a preview of subscription content, log in to check access. Wenink ACG The medial papillary complex. Polacek P Relation of myocardial bridge and loops on the coronary arteries to coronary occlusions. Irvin RG The angiographic prevalence of myocardial bridging.

Mosby, St. Louis Google Scholar. Garson A ed The science and practice of pediatric cardiology, 2nd edn. Williams and Wilkins, Baltimore Google Scholar. Lea and Febiger, Philadelphia Google Scholar. Saunders, Philadelphia Google Scholar. Larson WJ ed Human embryology, 2nd edn. Netter FH ed Atlas of human anatomy, 3rd edn. Weinhaus 1 Email author 1.

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Pulmonary Circulation and Systemic Circulation: The Routes and Function of Blood Flow

Like the bustling factory, the body must have a transportation system to carry its various cargos back and forth, and this is where the cardiovascular system steps in. The cardiovascular system can be compared to a muscular pump equipped with one-way valves and a system of large and small plumbing tubes within which the blood travels. The heart muscle has three layers and they are as follows:. The heart is equipped with four valves, which allow blood to flow in only one direction through the heart chambers. Although the heart chambers are bathed with blood almost continuously, the blood contained in the heart does not nourish the myocardium. Blood circulates inside the blood vessels, which form a closed transport system, the so-called vascular system.

Cardiac physiology

Your heart does a lot of work to keep the body going. Each day, the average human heart beats about , times, pumping 2, gallons of blood through the body. In fact, the heart does more physical work than any other muscle over a lifetime.

Cardiac physiology or heart function is the study of healthy, unimpaired function of the heart : involving blood flow; myocardium structure; the electrical conduction system of the heart; the cardiac cycle and cardiac output and how these interact and depend on one another. The heart functions as a pump and acts as a double pump in the cardiovascular system to provide a continuous circulation of blood throughout the body. This circulation includes the systemic circulation and the pulmonary circulation. Both circuits transport blood but they can also be seen in terms of the gases they carry.

Key chapters address animal models for cardiac research, cardiac mapping systems, heart-valve disease, and genomics-based tools and technology. Once again, a companion compact disk offers unique insights into the working heart, providing color images and movies that enhance the understanding of key points within the text. Skip to main content Skip to table of contents. Advertisement Hide. This service is more advanced with JavaScript available.

Anatomy of the Human Heart

The human heart is a finely-tuned instrument that serves the whole body. It is a muscular organ around the size of a closed fist, and it sits in the chest, slightly to the left of center. This delivers oxygen- and nutrient-rich blood to tissues and organs and carries away waste.

Blood must always circulate to sustain life. It carries oxygen from the air we breathe to cells throughout the body. The pumping of the heart drives this blood flow through the arteries, capillaries, and veins.

Handbook of Cardiac Anatomy, Physiology, and Devices

COMMENT 5

  • Welcome to Module 1: Anatomy and Physiology of the Heart. In % of human heart, the arterial supply to the AV node is a branch from the right coronary. Harharmmamfi - 20.03.2021 at 01:22
  • This chapter covers the internal and external anatomy of the heart, its positioning within the thorax, and its basic function. Sophia L. - 22.03.2021 at 05:00
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  • From: Handbook of Cardiac Anatomy, Physiology, and Devices. Edited by: P. A. The human heart assumes an oblique position in the thorax, with two-thirds to. Peverell R. - 24.03.2021 at 20:19

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