Pronator quadratus has same innervation as following muscles-: (A) Flexor pollicis longus, (B) Flexor digitorum superficialis, (C) Palmaris longus, (D) Flexor carpi ulnaris
Answer is A. 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