sinoatrial node
English
Alternative forms
Noun
sinoatrial node (plural sinoatrial nodes)
- (anatomy) A group of cells located in the wall of the right atrium of the heart that originates the impulses stimulating the heartbeat.
- Synonyms: sinus node, pacemaker
Derived terms
- sinoatrial nodal
Translations
a group of cells
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See also
- atrioventricular node
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