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sinus node

noun

Definition of sinus node

  1. :  a small mass of tissue that is embedded in the musculature of the right atrium of higher vertebrates and that originates the impulses stimulating the heartbeat



1937

First Known Use of sinus node

1937


Medical Dictionary

sinus node

noun

Medical Definition of sinus node




Learn More about sinus node

  1. Medical Dictionary: Definition of "sinus node"


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