This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Head and neck, Subject name: Anatomy
All the following aeries supply the Sternocleidomastoid except 
Select and explain. 
A. Superior Thyroid aery, B. Posterior auricular aery, C. Occipital aery, D. Suprascapular aery
B: Posterior auricular aery
Answer: B: Posterior auricular aery 
Explanation: Blood supply of Sternocleidomastoid Upper 1/3: Occipital aeryMiddle 1/3: Superior Thyroid aeryLower 1/3: Suprascapular aery from thyrocervical trunkReference: Chourasia; 6th edition; 89th page