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': 'Medial boundary of Cubital fossa is \nSelect and explain. \nA. Brachioradialis, B. Pronator teres, C. Supinator, D. Brachialis', 'role': 'user'}, {'content': 'Answer: B \nExplanation: CUBITAL FOSSA:-Triangular hollow in front of the elbow. Boundaries:-1. Lateral:- medial border of brachioradialis.2. Medial: lateral border of pronator teres.3. Base: imaginary horizontal line joining two epicondyles of the humerus.4. Apex: It is directed downwards, and is formed by the area where brachioradialis crosses the pronator teres muscle.5. Floor: brachialis (upper pa) Contents: medial to lateral 1. Median nerve 2. Brachial aery.3. Biceps tendon.4. Radial nerve. mnemonic: MBBR Brachial pulse- recording BPMedial cubital vein- collect blood samples & iv injection. REF: BD Chaurasia 7th edition page no: 97.', 'role': 'assistant'}]