Question

Mitral valve is the other name of
A. Valve found in vena cava
B. Valve found at the base of dorsal aorta
C. Tricuspid valve
D. Bicuspid valve

Answer 1

Hint: The heart is the important and prime part of the circulatory system and works to distribute blood to different parts of the body. In humans, the heart has four chambers that are right and left atria and right and left ventricles. The heart also has several valves that help in the smooth blood circulation system. The mitral valve is such a valve which is one of the heart’s four valves. It is a valve that presents between the left atrium and the left ventricle in the heart.

Complete answer:
The mitral valve is a valve with two flaps and is situated between the left atrium and left ventricle. The two flaps or cusps are also known as leaflet, one is anteromedial and known as the anterior leaflet and other one is the posterolateral leaflet or the posterior leaflet. The mitral valve allows blood to move from the left atrium into the left ventricle but the flow in the reverse direction is not allowed and is also known as the bicuspid valve. The structure of the valve resembles that of a bishop's miter or headdress and is known as mitral valve.
The mitral valve is situated on the left side of the heart. It lies between the atrium and ventricle of the left heart, or the left atrium and left ventricle. Due to its position, it is also referred to as the atrioventricular valves. The oxygen enriched blood enters into the left atrium from the pulmonary veins and when the left atrium fills with blood, the mitral valve gets opened and blood moves into the left ventricle. It then gets closed and prevents the blood to move in the reverse direction back into the left atrium. The duration of the process takes only a few seconds.
The mitral valve has a unique structure that allows it to keep blood moving through the heart. There are two leaflets present in the mitral valve. These are getting open and close during blood circulation. Where the anterior and posterior leaflet meets with each other, this area is known as commissures and the leaflets are connected to the papillary muscles in the heart by a connective structure called chordae tendineae.
The eustachian valve is the valve of inferior vena cava. The valves found at the base of aorta are known as semilunar valves. The tricuspid valves consist of three flaps and are present on the right side of the heart.

Therefore, the most correct option is option D.

Note: The Mitral valve is also known as the left atrioventricular valves or bicuspid valve. It is present between the left atrium and the left ventricle in the heart. It regulates the circulation of blood in the heart. Through this valve, blood can move towards the left ventricle from the left atrium, but the blood can not move backward through this valve. This valve consists of two leaflets, which regulate the opening and closing of the valve.