contestada

The ________ valve prevents backward flow into the right atrium.
A) pulmonic
B) semicaval
C) tricuspid
D) bicuspid
E) semilunar

Respuesta :

Answer: Option D) bicuspid

Explanation:

The bicuspid valve is also called mitral valve which is located between the left ventricle and left atrium of the heart.

The bicuspid valve serves a very important function that is to maintain blood flow in right direction that is from atrium to ventricle.

During blood flow the bicuspid valve gets open when the blood fills in left ventricle from the atrium and the bicuspid valve gets closed or sealed when the left ventricle pumps in order to prevent the blood from going in back into the left atrium. This maintains the high blood pressure of the left ventricle from the very low pressure of the pulmonary circulation.

Hence, the correct option is bicuspid valve.

Answer:

The correct answer is option 'c': Tricuspid valve.

Explanation:

The valves are structures in the heart that regulate the flow of blood into different chambers of the human heart. The values do this function by acting as regulator's of blood flow and act as switches. The tricuspid valve acts as a one way valve that regulates the blood flow during ventricular systole to prevent the back flow of blood from right ventricle into right atrium.