1. __E__ Abduction of the wrist results from the action of the

A. flexor carpi radialis

B. flexor carpi ulnaris

C. extensor carpi radialis longus

D. brachioradialis

E. Both A and C

2.__D__ Contents of the carpal tunnel DO NOT include

A. flexor digitorum superficialis

B. flexor digitorum profundus

C. flexor pollicis longus

D. flexor carpi ulnaris

E. median n.

3.__A__ Of the following muscles, which would be completely paralyzed by severance of the ulnar nerve at the elbow?

A. flexor carpi ulnaris

B. pronator teres

C. flexor pollicis longus

D. flexor digitorum superficialis

E. flexor digitorum profundus

4.__C__ The following statements concerning the branches of the radial nerve are true EXCEPT:

A. innervates extensors of the elbow and wrist joints.

B. is accompanied by the profunda brachii a. in the radial (spiral) groove.

C. provides cutaneous innervation to the medial 1/3 of the dorsum of the hand.

D. innervates the brachioradialis muscle.

E. arises from the posterior cord of the brachial plexus

5.__D__ The proximal digital flexion crease of the skin serves as a landmark for the

A. metacarpophalangeal joint

B. proximal interphalangeal joint

C. base of the proximal phalanx

D. midshaft of the proximal phalanx

E. superficial palmar arterial arch

6.__A__ The abductor pollicis brevis originates from the

A. flexor retinaculum

B. ulna

C. capitate

D. lunate

E. flexor retinaculum and trapezium

7.__C__ Muscles which do NOT attach to the extensor expansion of digit 3 include the

A. extensor digitorum

B. lumbrical

C. palmar interosseous

D. dorsal interosseous

E. Both B and D

8.__E__ A "shoulder separation" involves rupture of the ? ligaments

A. coracoacromial

B. coracoclavicular

C. acromioclavicular

D. coracohumeral

E. Both B and C

9.__D__ A condyloid joint permits the following movements:

A. flexion-extension

B. rotation

C. adduction-abduction

D. Both A and C

E. A, B, and C

10.__C__ Which of the following statements is FALSE concerning the joints of the upper extremity?

A. The humerus usually dislocates inferiorly.

B. The capsule of the elbow joint is weak on its anterior side.

C. The collateral ligaments of the metacarpophalangeal joints are tense when the joint is extended.

D. The wrist joint is the articulation of the radius, scaphoid, and lunate bones.

E. Glenohumeral ligaments reinforce the anterior part of the capsule of the shoulder joint.