THORAX ABDOMEN AND PELVIS

MEDICAL

HEART AND PERICARDIUM

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
what is the structure in veins which temporarily close and open so blood flows in one direction
A
mitral valve
B
atria
C
septum
D
valve
Explanation: 

Detailed explanation-1: -The semilunar valves permit blood to flow into the arteries from the ventricles and prevent the backward flow of blood from the arteries into the ventricles.

Detailed explanation-2: -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. The tricuspid valve separates the right atrium and right ventricle.

Detailed explanation-3: -As your heart pumps blood, four valves open and close to make sure blood flows in the correct direction. As they open and close, they make two sounds that create the sound of a heartbeat. The four valves are the aortic valve, mitral valve, pulmonary valve and tricuspid valve.

There is 1 question to complete.