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单词 atrioventricular node
释义

WordReference Random House Unabridged Dictionary of American English © 2024
atrioventricular node, [Anat.]
  1. Anatomya 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. Abbr.: A-V node.
  • 1930–35

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更新时间:2024/11/11 4:57:58