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': 'All of the following structures passes through the deltopectoral triangle, EXCEPT: \nSelect and explain. \nA. Cephalic vein, B. Axillary nerve, C. Deltopectoral lymph nodes, D. Branch of thoracoacromial aery', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Contents of the deltopectoral triangle are cephalic vein, deltoid branch of thoracoacromial aery and deltopectoral nerves. Boundaries of the triangle are formed by:Upper margin of pectoralis major mediallyAnterior margin of deltoid laterallyClavicle superiorlyRef: Clinical Anatomy: (a Problem Solving Approach) By Kulkarni PAGE 85.', 'role': 'assistant'}]