This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Muscles of arm and forearm region & Cubital fossa, Subject name: Anatomy
[{'content': 'Pronator quadratus has same innervation as following muscles- \nSelect and explain. \nA. Flexor pollicis longus, B. Flexor digitorum superficialis, C. Palmaris longus, D. Flexor carpi ulnaris', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Pronator quadratus is supplied by anterior interosseous nerve which is a branch of median nerve. This anterior interosseous nerve supplies deep muscles of anterior forearm: Flexor pollicis longus Lateral half of Flexor digitorum profundus of index & middle fingers Pronator quadratus. Flexor digitorum superficialis supplied by median nerve Palmaris longus supplied by median nerve Flexor carpi ulnaris supplied by ulnar nerve', 'role': 'assistant'}]