Meaning Of The Word Sinoatrial node

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Sinoatrial node Meaning

Sinoatrial node Definition
Sinoatrial node Definition

What's The Definition Of Sinoatrial node?

sinoatrial node in American English
pacemaker (sense 2) pacemaker (sense 2a)
noun: a small mass of tissue in the right atrium functioning as pacemaker of the heart by giving rise to the electric impulses that initiate heart contractions

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