Describe the structure of the heart and it's working? what kind of sound does heart have?
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Describe the structure of the heart and it's working? what kind of sound does heart have?
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The right atrium receives blood from the superior and inferior vena cavas and the coronary sinus; blood then moves to the right ventricle where it is pumped to the lungs.
The lungs re-oxygenate the blood and send it to the left atrium.
Blood moves from the left atrium to the left ventricle via the bicuspid valve; blood is pumped out of the left ventricle to the aorta, which sends blood to the organs and muscles of the body.
The heart is composed of three layers: the epicardium (outer layer), the myocardium (middle layer), and the endocardium (inner layer).