Definitions from Wiktionary (SA node)
▸ noun: (anatomy) Abbreviation of sinoatrial node. [(anatomy) A group of cells located in the wall of the right atrium of the heart that originates the impulses stimulating the heartbeat.]
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▸ noun: (anatomy) Abbreviation of sinoatrial node. [(anatomy) A group of cells located in the wall of the right atrium of the heart that originates the impulses stimulating the heartbeat.]
Similar:
sinoatrial node,
pacemaker,
Cardiac pacemaker,
S-A node,
sinus node,
coronary sinus,
AV node,
carotid sinus,
venous sinus,
atrioventricular valve,
more...
Opposite:
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