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': 'All are contents of axilla, except \nSelect and explain. \nA. Axillary tail of breast, B. Axillary vessels, C. Axillary sheath, D. Roots of brachial plexus', 'role': 'user'}, {'content': 'Answer: D \nExplanation: AXILLA: Is a pyramidal space situated between the upper pa of the arm and the chest wall. CONTENTS: 1)Axillary aery and its branches. 2)Axillary vein and its tributaries. 3)Infraclavicular pa of the brachial plexuses. 4)Five groups of axillary lymph nodes and the associated lymphatics. 5)The long thoracic and intercostobrachial nerves. 6)Axillary fat and aerolar tissue in which the other contents are embedded. REF: BD Chaurasia 7th edition page no:50.', 'role': 'assistant'}]