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Words related to atria

a·tri·um
A a

  • atrial natriuretic factor

    any of several peptide hormones that are released by the atria of the heart in response to an abnormal increase in blood volume and that modulate blood pressure and the excretion of sodium, potassium, and water. Abbreviation: ANF.

  • atrioventricular

    of, relating to, or affecting both the atria and the ventricles of the heart

  • atrioventricular node

    a small mass of muscular fibers at the base of the wall between the atria, conducting impulses received from the sinoatrial node by way of the atrioventricular bundles and, under certain conditions, functioning for the sinoatrial node as pacemaker of the heart. Abbreviation: A-V node.

  • atrium

    An atrium is a part of a building such as a hotel or shopping centre, which extends up through several floors of the building and often has a glass roof.

  • chorda tendinea

    any of the tendons extending from the papillary muscles to the atrioventricular valves and preventing the valves from moving into the atria during ventricular contraction.

  • ventricle

    Zoology. any of various hollow organs or parts in an animal body.
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