5. The lower chamber of the heart that pumps blood out to the lungs and body is called the .

ventricles (VEN-trih-kuhls): The two chambers at the bottom of the heart are called the ventricles. The heart has a left ventricle and a right ventricle. Their job is to pump the blood to the body and lungs.

Explanation:

Ventricle

Explanation:

Oxygen-rich blood then flows through the mitral valve (MV) into the left ventricle (LV), or the left lower chamber. The left ventricle (LV) pumps the oxygen-rich blood through the aortic valve (AoV) into the aorta (Ao), the main artery that takes oxygen-rich blood out to the rest of the body. Hope this helps!

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multiplying and dividing the two decimals and the eqations by the same number of the overalls