The proximal row of the carpal bones consists of all of the following EXCEPT: a. Scaphoid. b. Lunate. c. Trapezium. d. Pisiform. e. Triquetral. Answer c
Regarding the ulnar nerve, all are correct EXCEPT: a. Is the largest branch of the medial cord of the brachial plexus. b. Carries fibers from C6, C7 and C8. c. Has no branches in the arm. d. It enters the hand superficial to the flexor retinaculum. e. Injury of the nerve causes partial claw hand. Answer b
Regarding the median nerve, all are correct EXCEPT: a. Arises from both the medial and lateral cords of the brachial plexus. b. It crosses the brachial artery at the insertion of the coracobrachialis. c. In the cubital fossa, it lies lateral to the brachial artery. d. It enters the hand in the carpal tunnel. e. Injury of the nerve causes ape-like hand. Answer c
One of the following is not a branch of the radial artery: a. Radial recurrent artery. b. Common interosseous artery. c. Palmar (anterior) carpal. d. Dorsal (posterior) carpal. e. Deep palmar arch. Answer b
The median nerve supplies all of the following muscles EXCEPT: a. Flexor carpi ulnaris. b. Flexor carpi radialis. c. Flexor digitorum superficialis. d. Palmaris longus. e. Pronator teres. Answer a
The ulnar nerve supplies all of the following muscles EXCEPT: a. Adductor pollicis. b. Flexor pollicis longus. c. Interossei muscles. d. Hypothenar muscles. e. Medial 2 lumbricals. Answer b
The ulnar nerve: a. is a branch from the lateral cord of the brachial plexus. b. Carries fibers from C8 and T1. c. Supplies all the superficial muscles of the front of the forearm except flexor carpi ulnaris. d. All of the above. e. None of the above. Answer b
The distal row of the carpal bones consists of: a. Scaphoid. b. Lunate. c. Triquetral. d. Pisiform. e. None of the above. Answer e
Structure crossing superficial to the flexor retinaculum: a. Median nerve. b. Ulnar nerve. c. Flexor digitorum superficialis. d. Flexor pollicis longus. e. None of the above. Answer b
Carpal tunnel syndrome causes: a. Claw hand. b. Wrist drop. c. Paralysis of all muscles of the hand. d. Ape-like hand. e. Waiter’s tip position. Answer d
