NEET BIOLOGY

Detailed explanation-1: -Separates the left ventricle from the aorta. Opens to allow blood to leave the heart from the left ventricle through the aorta and the body. Prevents the backflow of blood from the aorta to the left ventricle.

Detailed explanation-2: -Heart valves are parts of your heart that act like doors. They open and close to let blood flow from one area of your heart to another. They help ensure that blood moves at the right time and in the correct direction. As the valves open and close, they create two sounds, which are your heartbeat.

Detailed explanation-3: -Why are valves important for circulation and health? Each heart valve has two functions: To open correctly so blood can empty from the chamber. To close properly so blood flows forward.

Detailed explanation-4: -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-5: -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. Normal valves have 3 flaps (leaflets), except the mitral valve. It only has 2 flaps.