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': 'Anatomical snuffbox contains - \nSelect and explain. \nA. Radial artery, B. Brachial artery, C. Ulnar artery, D. Interosseus artery', 'role': 'user'}, {'content': 'Answer: A \nExplanation: -\xa0\xa0\xa0\xa0\xa0\xa0\xa0 Boundaries of anatomical snuff box\n\n\xa0 \xa0Anterior/ Lateral wall- Extensor pollicis brevis and abductor pollicis longus tendons. \n\xa0 \xa0Posterior/ medial wall- Extensor pollicis longus tendon\n\xa0 \xa0Floor- Styloid process of radius, trapezium,scaphoid and base of first metacarpal.\n\xa0 \xa0Roof- Skin, fascia, starting of cephalic vein, superficial branch of radial nerve.\n\xa0\xa0Content- radial artery', 'role': 'assistant'}]