(n) :
(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.]
(n) :
(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.]