Question

Which valve separates the atria and ventricles ?
(A) AV valve
(B) Semilunar valve
(C) Pulmonary semilunar valve
(D) All

Answer 1

Answer:

The AV valves or the atrioventricular valves separate the atria and ventricles.This can be of two types such as the tricuspid valve and the mitral valve.

The tricuspid valve is present on the right side of the heart in between the right atrium and the right ventricle and directs the flow of blood in only one direction( atrium to ventricle), and further prevents the blood from backflowing into the right atrium.

The mitral valve is present between the left atrium and left ventricle and directs the flow of blood from the atrium to the ventricle. This further prevents the backflow of blood into the atrium.

Answer 2

AV valve  separates the atria and ventricles.

Option A

Explanation:

• The two very important components of the heart are atrium (auricle) and ventricle.
• The blood flow from body parts to lungs and vice versa is being regulated by the pair of atria and ventricles.
• There is a presence of valves which prevents back-flow of blood from different chambers of the heart.
• The valve which separate right atrium and right ventricle is called Tricuspid valve, while the valve which separate left atrium and left ventricle is called Bicuspid valve.
• These valves are, in combination are called Atrio-ventricular valves.