This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Anatomy
[{'content': 'Suprascapular aery arises from which of the following branches of subclan aery? \nSelect and explain. \nA. Internal thoracic aery, B. Thyrocervical trunk, C. Costocervical trunk, D. Dorsal scapular aery', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Suprascapular aery is a branch of the thyrocervical trunk. It supplies the supraspinatus and infraspinatus muscles and the shoulder and acromioclavicular joints. The right subclan aery arises from the brachiocephalic trunk and left subclan aery originates directly from the arch of aoa. The five main branches of subclan aery are:Veebral aeryInternal mammary (thoracic) aeryThyrocervical trunkCostocervical trunkDorsal scapular aeryRef: BRS Gross Anatomy By Kyung Won Chung, page 53.', 'role': 'assistant'}]