EVERYDAY SCIENCE

Detailed explanation-1: -Heart valves control the flow of blood so that it moves in the right direction. The valves prevent blood from flowing backward. The heart has four valves. The tricuspid valve separates the right atrium and right ventricle.

Detailed explanation-2: -If you were to take a peek, you’d see that venous valves are bicuspid flap-like structures made of elastic tissue. Similar to the valves associated with the heart, yet dissimilar from the arteries, veins contain valves to ensure that the blood flows in only one direction, toward the heart.

Detailed explanation-3: -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.

Detailed explanation-4: -Blood that needs oxygen flows from your body into the right atrium. It then flows through the tricuspid valve to the right ventricle. The right ventricle pumps the blood through the pulmonary valve and into your lungs, where it picks up oxygen. The oxygen-rich blood then flows to the left atrium.