Question

Which disorder is characterized by failure of the bicuspid valve to close properly?

1) Pulmonic valve prolapse

2) Atrioventricular prolapse

3) Sino-atrial prolapse

4) Atrioventricular prolapse

5) Mitral valve prolapse

Answer 1

Mitral valve prolapse is the disorder characterized by the failure of the bicuspid valve to close properly. When a cusp of the mitral valve is forced backward, the valve does not close correctly, leading to regurgitation.

Step-by-step explanation:

The disorder characterized by failure of the bicuspid valve to close properly is Mitral valve prolapse. When one of the cusps of the mitral valve is forced backward by the force of the blood, the valve does not close properly, resulting in regurgitation or the backward flow of blood.

This condition may occur if the chordae tendineae, which are responsible for the closure mechanism, are damaged or broken. The failure of the valve to close disrupts the normal one-way flow of blood and can be detected through a heart murmur.