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-   -   Repeated USMLE Questions Step 1- 649 (https://www.usmle-forums.com/usmle-step-1-forum/622241-repeated-usmle-questions-step-1-649-a.html)

sohag100 12-30-2018 05:16 AM

Repeated USMLE Questions Step 1- 649
 
A 74 year-old man presents to the clinic with a complaint of palpitation and lightheadedness. Image studies revealed blockage of the artery to the SA node.
This artery arises from which of these arteries?
A-Left coronary artery
B-Right coronary artery
C-Circumflex artery
D-Anterior interventricular artery
E-Posterior interventricular artery
Answer


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