A vein has ..... This helps keep blood going in the right direction.

CARDIOVASCULAR PHYSIOLOGY

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Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]

A vein has ____ This helps keep blood going in the right direction.

A	valves
B	very thin walls
C	very thick wall
D	None of the above

Explanation:

Detailed explanation-1: -Heart valves control the flow of blood so that it moves in the right direction. The valves prevent blood from flowing backward. The heart has four valves.

Detailed explanation-2: -Heart valves open and close to allow for proper blood flow. Your valves ensure that blood flows only in one direction. These valves are: Aortic valve connects your left ventricle and aorta (large artery that carries blood throughout your body).

Detailed explanation-3: -The blood that is meant to leave the ventricles to travel to the body is supposed to be prevented from flowing in the wrong direction by the parts of the aortic and pulmonary valves called the cusps. The cusps help the valves create a tight seal, which helps blood flow in the correct direction.

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