MEDICAL PHYSIOLOGY

PHYSIOLOGY

GENERAL PHYSIOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which valve prevents blood flowing back into the left atrium.
A
Semi-lunar pulmonary valve
B
Semi-lunar aortic valve
C
Bicuspid valve
D
Tricuspid valve
Explanation: 

Detailed explanation-1: -Mitral valve: This valve has two leaflets. They allow blood to flow from the lungs into the left atrium. And they prevent backward flow from the left ventricle to the left atrium.

Detailed explanation-2: -Mitral Valve Separates the top left chamber (left atrium) from the bottom left chamber (left ventricle). Opens to allow blood to flow from the left atrium to the left ventricle. Prevents the back flow of blood from the left ventricle to the left atrium.

Detailed explanation-3: -When the ventricles contract, the blood should go out of the heart and not back to the atrium. This backflow of blood is prevented by valves. Tricuspid valve prevents backflow of blood from right ventricle to right atrium. Bicuspid valve prevents backflow of blood from left ventricle to left atrium.

Detailed explanation-4: -The valve allows blood to flow from the left ventricle (pumping chamber) to the aorta and prevents blood from flowing backward.

Detailed explanation-5: -Blood travels through the bicuspid valve to the left atrium. Both the aortic and the pulmonary valves are semilunar valves.

There is 1 question to complete.