All of the following are true about coronary aery except:: (A) Right coronary aery lies in right anterior coronary sulcus, (B) Left anterior descending aey is a branch of left coronary aery, (C) Usually 3 obtuse marginal aeries arise from left coronary aery, (D) In 85% cases posterior descending interventri-cular aery arises from right co. a.
Answer is C. C i.e. Usually 3 obtuse marginal aeries arise form left coronary aery