ANATOMY

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. Normal valves have 3 flaps (leaflets), except the mitral valve.

Detailed explanation-2: -Aortic valve: Allows blood to pass from the left ventricle to the aorta; prevents backflow of blood into the left ventricle. 13. Aorta: Distributes blood throughout the body from the heart.

Detailed explanation-3: -Veins have valves to prevent the backflow of blood because the blood in veins flow .

Detailed explanation-4: -The pulmonary valve prevents blood from going backward from the pulmonary artery to the right ventricle. Mitral valve: This valve has two leaflets. They allow blood to flow from the lungs into the left atrium. And they prevent backward flow from the left ventricle to the left atrium.

Detailed explanation-5: -The valves prevent the backward flow of blood. These valves are actual flaps that are located on each end of the two ventricles (lower chambers of the heart). They act as one-way inlets of blood on one side of a ventricle and one-way outlets of blood on the other side of a ventricle.