This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Upper limb, Subject name: Anatomy
[{'content': 'Which branch of subclan aery contributes to scapular anastomosis \nSelect and explain. \nA. Veebral aery, B. Internal thoracic aery, C. Thyrocervical trunk, D. Dorsal scapular aery', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Anastomosis around scapula occurs in 3 fossae, subscapular, supraspinous and infraspinatus. It is formed by : Suprascapular aery, a branch of the thyrocervical trunk Deep branch of the transverse cervical aery, another branch of thyrocervical trunk. Circumflex scapular aery, a branch of the subscapular aery which arises from the third pa of the axillary aery. Note that this is an anastomosis between branches of the first pa of the subclan aery and branches of the third pa of the axillary aery. These aeries also anastomose with intercostal aeries. BD Chaurasia 7th edition Page no: 76', 'role': 'assistant'}]