What is the function of the valves in the heart?

Answer 1

To prevent the backflow of blood into the heart during the period of time where the heart doesn't beat (diastole) and to segment the heart into chambers.
The valves allow the flow, and prevent the backflow, of blood in the heart chambers, ensuring that the muscle contractions force the blood in the proper direction.

Answer 2

As the heart contracts and releases, it pumps blood through your body. When the heart contracts it pushes the blood out of the ventricles. The reason for the valves between the atria and the ventricles is to prevent the blood from flowing backwards rather than where it is being pumped to.

Answer 3

The major valves are in the heart and in the veins. Small one-way valves in the veins prevent the blood from going backwards as it is returning to the heart. The valves in the heart prevent the blood from flowing backwards from one chamber of the heart to the other. For example, the mitral valve provides outward flow to the body by preventing blood from the left ventricle from flowing back to the left atrium, where it came from.

Heart Valves

The heart has two chambers on each side. The top chamber pumps blood into the bottom chamber and then the bottom chamber pumps it away from the heart. (The right side pumps blood to the lungs to get oxygen, while the left side pumps blood that has just gotten oxygen from the lungs, out to the rest of the body.) As the top chamber pumps blood into the bottom chamber, it pushes open a valve and fills up the bottom chamber. Remember that while this is happening, the bottom chamber is not doing anything, it is relaxed. Now, the bottom chamber pumps the blood out, but to stop blood from going back up into the top chamber requires a one way valve. It opens when pressure from the top pushes on it, but closes when pressure from the bottom pushes on it.

Answer 4

The valves of the heart:

- Tricuspid valve - the valve between the right atrium and right ventricle

- Pulmonary valve - the valve between the right ventricle and the pulmonary artery

- Mitral valve - ( also known as the bicuspid valve ) the valve between the left atrium and left ventricle

- Aortic valve - the valve between the left ventricle and the aorta

The function of the valves:

- The valves prevent blood from flowing backward.

Answer 5

they help the flow of blood in one direction only.

Answer 6

valves prevent backflow of blood