What chamber of the heart pumps blood into the pulmonary arteries?

Answer 1

The blood is stopped from flowing backward by four sets of valve. Between the right artrium and the right ventricle is the tricuspid ( = three flaps) valve. Between the left artrium and the left ventricle is the bicuspid ( = two flaps) valve.

Answer 2

To the lungs. Arteries and veins are usually named after the organ they carry blood to and from. It will help you a lot if you learn the scientific names for organs, for example:

• "Pulmonary" means "lungs"
• "Hepatic" means "liver"
• "Renal" means "kidney"
• and so on.

Answer 3

The pulmonary vein returns blood to the left atrium.

Blood returns from the body to the right atrium, and is pushed to the lungs by the right ventricle. Once oxygenated, the blood flows back to the left atrium, and is pushed out into the arteries by the left ventricle.

There is often confusion over the pulmonary arteries(which carry deoxygenated or venous blood) to the lungs, with the pulmonary veins, which carry oxgenated or arterial blood back to the heart. The terminology is based on whether blood is flowing "to" the heart (veins) or "away" from the heart (arteries).

Answer 4

The Right ventricle pushes deoxygenated blood from through the pulmonary valve into the pulmonary artery.

Answer 5

The heart, more specifically the right ventricle.

Answer 6

The right ventricle pumps blood into the lungs.