Heart ventricle

One of the two lower chambers of the heart. The right ventricle receives blood from the right atrium and pumps it into the lungs via the pulmonary artery, and the left ventricle receives blood from the left atrium and pumps it into the circulation system via the aorta.

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  • Heart, artificial

    A human-made heart that is used to replace a diseased or malfunctioning heart when a donor organ is not available.

  • Heart, left

    The left atrium and left ventricle.

  • Heart, Lung, and Blood Institute, National

    One of the National Institutes of Health in the U.S., the NHLBI’s mission is to “provide leadership for a national research program in diseases of the heart, blood vessels, lungs, and blood and in transfusion medicine through support of innovative basic, clinical, and population-based and health education research.”

  • Heart, right

    The right atrium and right ventricle.

  • Heart-lung machine

    pumping and oxygenating blood. Blood returning to the heart is diverted through a heart-lung machine before being returned to arterial circulation. Such machines may be used during open-heart surgery. Also known as pump-oxygenator or cardiopulmonary bypass machine.

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