The heart is located behind the anterior chest wall, in the middle between the two lungs. It consists of muscle tissue. It is a vital organ whose main job is to pump blood.
Frontal view of the heart; after removing the left ventricle (ventricle), the right ventricle (right ventricle) and the anterior parts of the right ventricle (right atrium) >
It consists of four cavities, one on the right and one on the left, an atrium (atrium) and a ventricle (ventricle).
The right atrium and ventricle are the tricuspid valve; The mitral valve separates the atrium and ventricle on the left.
There is an aortic valve between the end of the left ventricle of the heart and the beginning of the aorta, which comes out of the heart and is the largest artery in humans. Similarly, the pulmonary valve is between the right ventricle and the pulmonary vein. The veins that collect evidence from the whole body to the right system of the heart (vena cava inferior and vena cava superior) are opened. This blood is separated from the right system by the pulmonary artery (Pulmonary artery). The blood returning from the lungs through the pulmonary veins (pulmonary veins) circulates through the left atrium and left ventricle and is pumped to the whole body via the aorta.
The outer surface of the heart is covered by a surrounding membrane called the pericardium. There is a very small amount of lubricating fluid between this membrane and the heart so that the heart can move easily while working.
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