PATHOLOGY

Detailed explanation-1: -The valves prevent the backward flow of blood. Valves are actually flaps (leaflets) that act as one-way inlets for blood coming into a ventricle and one-way outlets for blood leaving a ventricle.

Detailed explanation-2: -Valves maintain direction of blood flow As the heart pumps blood, a series of valves open and close tightly. These valves ensure that blood flows in only one direction, preventing backflow.

Detailed explanation-3: -The valves open and close to keep blood moving in the right direction through the heart. As the heart beats, blood moves through it. With each squeeze, the valves open and close to keep blood moving forward. In this way, valves keep blood moving as well as possible through the heart.