Aerial supply to SA node is by:
Correct Answer: Right coronary aery
Description: The right coronary aery arises from the anterior aoic sinus of the ascending aoa and runs forward between the pulmonary trunk and the right auricle.The aery of the sinuatrial node (branch of right coronary aery) supplies the SA node and the right and left atria; in 40% of individuals it arises from the left coronary aery.
Category:
Anatomy
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