[Solved] Regarding blood supply to the heart:

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Q.	Regarding blood supply to the heart:
A.	the SA nodal artery is more commonly a branch of the left coronary artery
B.	40% of hearts show “left dominance”
C.	the marginal and anterior interventricular arteries are the main branches of the left coronary artery
D.	the right coronary artery arises from the posterior aortic sinus
E.	the circumflex artery travels in the atrioventricular groove
Answer» E. the circumflex artery travels in the atrioventricular groove

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