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atrioventricular bundle

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noun Anatomy.
  1. a bundle of specialized muscle fibers regulating the heartbeat by conducting impulses from the right atrium to the ventricles.
Also called bundle of His.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
atrioventricular bundle in Medicine

atrioventricular bundle

n.
  1. bundle of His