Which of the following statements about valves in the heart is/are true? A. A valve enables blood to only flow in one direction. B. A valve keeps blood from flowing in a reverse direction. C. All of the valves open when the blood pressure on one side of the valve is higher than on the other side of the valve. D. Statements A and B are correct. Statement C is incorrect. E. Statements A, B, and C are correct.

Heart valves are thin tissue paper membrane that is attached to the heart. The heart valves and chambers are lined with endocardium.The heart valves is divided into four which are;

1. The two atrioventricular valves , the biscupid and triscupid valves which are between the upper chambers of the atria and the lower chambers of the ventricles

2. The two semilunar valves, the aortic and the pulmonary valves which are in the arteries leaving the heart. The biscupid and the aortic valves are in the left heart while the pulmonary and triscupid valves are in the right heart. During ventriculsr systole when pressure rises in the left ventricle and it is greater in the aorta, the aortic valves then open and allow blood to leave in through the left ventricle in the aorta.

adioabiola adioabiola · Answer 2 · 2022-01-07T14:18:06+01:00

The statement which is true about valves in the heart is: Choice D.

A valve enables blood to only flow in one direction
A valve keeps blood from flowing in a reverse direction.

Discussion:

Heart valves by definition are thin tissue membranes attached to the heart. The heart valves and chambers are lined with endocardium.

The heart valves are divided into four which are;

The two atrioventricular valves , the biscupid and triscupid valves.

The two semilunar valves, the aortic and the pulmonary valves located in the arteries leaving the heart.

All of which are characterized by enabling blood flow only in one direction and keeping blood from flowing in the reverse direction.