ANATOMY

Detailed explanation-1: -Oxygen-rich blood flows from the lungs back into the left atrium (LA), or the left upper chamber of the heart, through four pulmonary veins. Oxygen-rich blood then flows through the mitral valve (MV) into the left ventricle (LV), or the left lower chamber.

Detailed explanation-2: -The valve allows blood to flow from the left ventricle (pumping chamber) to the aorta and prevents blood from flowing backward.

Detailed explanation-3: -Blood travels through the bicuspid valve to the left atrium. Both the aortic and the pulmonary valves are semilunar valves. The mitral valve is an atrioventricular valve.

Detailed explanation-4: -Explanation: The pulmonary circulation carries oxygenated blood from the lungs to the left atrium via the pulmonary veins. From there it enters the left ventricle, then it is pumped out through the aorta to serve organs of the body.

Detailed explanation-5: -Has three leaflets, unless it’s abnormal from birth, i.e., bicuspid aortic valve. Separates the left ventricle from the aorta. Opens to allow blood to leave the heart from the left ventricle through the aorta and the body. Prevents the backflow of blood from the aorta to the left ventricle.