system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
In case of occlusion occurs at the 2nd pa of Axillary aery, blood flow is maintained by collateral/ anastomosis between:
assistant
The correct answer is  C i.e., Deep branch of the transverse cervical aery and subscapular aeryAxillary aery is a continuation of subclan aery from lateral border of 1st rib to lateral border of teres major muscle(2 after which it becomes brachial aery. Because of extensive collateral circulation between thyrocervical trunk of subclan aery and subscapular aery, which is branch distal axillary aery. Ligation, thrombosis or trauma of axillary aery anywhere between origins of thyrocervical trunk & sub scapular aeries will not lead to compromise of flow to distal arm.