Medical Dictionary

atrioventricular node

noun

Definition of ATRIOVENTRICULAR NODE

:  a small mass of tissue that is situated in the wall of the right atrium adjacent to the septum between the atria, passes impulses received from the sinoatrial node to the ventricles by way of the bundle of His, and in some pathological states replaces the sinoatrial node as pacemaker of the heart
April 01, 2015
diapause Hear it
a period of physiological dormancy
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