True about SA node is all except
Correct Answer: Supplied by left vagus nerve
Description: Sinoatrial Node (SA node) It is known as the pacemaker of the hea.It generates an impulse at the rate of about 70/min and initiates the heabeat.It is horseshoe-shaped and is situated at the atriocaval junction in the upper pa of the sulcus terminalis.The impulse travels through the atrialwall to reach the AV node. Except for a pa of the left branch of the AV bundle supplied by the left coronary aery the whole of the conducting system is usually supplied by the right coronary aery. <img src=" /> REF.B D Chaurasia's human anatomy vol.1,fifth edition
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