Oxygen-rich blood enters the hearth by the pulmonary veins from the lungs. The blood flows through the left atrioventricular valve.
Oxygen-rich blood enters the hearth by the pulmonary veins from the lungs.
The pulmonary veins from the lungs act to transport oxygen-rich blood from the lungs to the heart.
This blood then flows via the left atrioventricular valve in order to enter in the left ventricle.
The left atrioventricular valve is one of the four heart valves, which is located between the left atrium and the left ventricle.
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