Q:

What is the function of the right ventricle?

A:

Quick Answer

The right ventricle pumps low-pressure blood from the heart to the lungs, where it is recharged and returned for delivery to the rest of the body. According to Mayo Clinic, the right ventricle receives blood from the right atrium through the tricuspid valve and delivers its blood through the pulmonary arteries.

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Full Answer

Deoxygenated blood from the body arrives at the heart via the superior or inferior vena cava and drains into the right atrium. From there, it moves into the right ventricle during the systolic phase of a normal heart rhythm. According to Wikipedia, the right ventricle contracts during the diastolic phase and pumps the still-deoxygenated blood into the pulmonary arteries. These arteries carry the blood to the lungs, where it takes up oxygen and expels molecular waste gases before being returned to the heart via the pulmonary veins.

Oxygenated blood does not pass through the right ventricle of the adult mammalian heart, passing instead through the high-pressure system of the heart's left side to reach the body prior to its return to the right atrium. The right and left ventricles are separated by a thick muscular wall known as the septum, which keeps fresh and exhausted blood from mixing and preserves the function of each half of the circulatory system.

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