node, sa medical dictionary

Sinoatrial node. The pacemaker of the heart, located in the right atrium (upper chamber of the heart). The electrical signals initiated in the sa node are transmitted throuhg the atria and the ventricles to stimulate heart muscle contractions (heartbeats).

(12 Dec )

node of ligamentum arteriosum, node of Ranvier, node of Rouviere < Prev | Next > nodi, N,O-diacetylmuramidase

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