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': 'In obstruction of second pa of axillay aery, the anostomosis between the following aery will maintain the blood supply of upper limb? \nSelect and explain. \nA. Deep branch of transverse cervical aery & subscapular aery, B. Anterior & posterior circumflex humeral, C. Posterior circumflex humeral & circumflex scapular aery, D. Suprascapular & anterior circumflex humeral aery', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Formed by branches of- Subclan aery - first pa - Suprascapular aery - Deep branch of transverse cervical aery Axillary aery - third pa - Subscapular aery & its circumflex scapular branch There are other smaller anastomoses over the acromion process, which also helps to maintain .flow to arm. (BDC Vol I, 4/e, p 82) Anastomoses over the acromion process Formed by - a)Acromial br. of thoraco-acromial aery b)Acromial br. of suprascapular aery c)Acromial br. of posterior circumflex humeral aery The subscapular aery also forms anastomoses with intercostal aeries', 'role': 'assistant'}]