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The heart is a muscular organ situated in the mediastinum.It consists of four chambers, four valves, two main arteries (the coronary arteries), and the conduction system. The left and right sides of the heart have different functions: the right side receives de-oxygenated blood through the superior and inferior venae cavae and pumps blood to the lungs through the pulmonary artery, and the left ...
The heart is a four-chambered organ consisting of right and left halves, called the right heart and the left heart. The upper two chambers, the left and right atria, are entry points into the heart for blood-flow returning from the circulatory system, while the two lower chambers, the left and right ventricles, perform the contractions that ...
The heart has four valves, which separate its chambers. One valve lies between each atrium and ventricle, and one valve rests at the exit of each ventricle. [8] The valves between the atria and ventricles are called the atrioventricular valves. Between the right atrium and the right ventricle is the tricuspid valve.
Date/Time Thumbnail Dimensions User Comment; current: 22:11, 26 December 2006: 388 × 385 (18 KB): Patrick.lynch {{Information |Description = Heart apical four-chamber diagram |Source = Patrick J. Lynch, medical illustrator |Date = December 23, 2006 |Author = Patrick J. Lynch, medical illustrator |Permission = Creative Commons Attribution 2.5 License 2006 |other_ver
Heart circulation simple diagram of heart chambers: Date: 23 December 2006: Source: Patrick J. Lynch, medical illustrator: Author: Patrick J. Lynch, medical illustrator: Permission (Reusing this file) Creative Commons Attribution 2.5 License 2006
Date/Time Thumbnail Dimensions User Comment; current: 22:12, 26 December 2006: 442 × 384 (14 KB): Patrick.lynch {{Information |Description = Heart apical four-chamber anatomy diagram |Source = Patrick J. Lynch, medical illustrator |Date = December 23, 2006 |Author = Patrick J. Lynch, medical illustrator |Permission = Creative Commons Attribution 2.5 License 2006 |o
The mammalian heart has four chambers: the left atrium above the left ventricle (lighter pink, see graphic), which two are connected through the mitral (or bicuspid) valve; and the right atrium above the right ventricle (lighter blue), connected through the tricuspid valve. The atria are the receiving blood chambers for the circulation of blood ...
A heart valve is a biological one-way valve that allows blood to flow in one direction through the chambers of the heart. A mammalian heart usually has four valves. Together, the valves determine the direction of blood flow through the heart. Heart valves are opened or closed by a difference in blood pressure on each side. [1] [2] [3]