quiz 6

Question 1

Which of the following is innervated by the median nerve?
Question 1 Answer

a.
Dorsal interossei #2

b.
Adductor pollicis

c.
Palmaris brevis

d.
Opponens pollicis

e.
Lumbrical #4

Answer 1

d.
Opponens pollicis

Question 2

If the 4th dorsal interosseous muscle is paralyzed, which of the following movements is absent?
Question 2 Answer

a.
Abduction of the 4th finger at the MCP joint

b.
Flexion of the 3rd finger at the MCP joint

c.
Flexion of the 5th finger at the MCP joint

d.
Abduction of the 5th finger at the MCP joint

e.
Adduction of the 4th finger at the MCP joint

Answer 2

a.
Abduction of the 4th finger at the MCP joint

Question 3

Which of the following carpal bones does not participate in forming the carpal arch?
Question 3 Answer

a.
Trapezoid

b.
Hamate

c.
Pisiform

d.
Trapezium

e.
Scaphoid

Answer 3

e.
Scaphoid

Question 4

Which of the following muscles inserts on the base of the 5th metacarpal?
Question 4 Answer

a.
Extensor digiti minimi

b.
Extensor carpi radialis brevis

c.
Extensor carpi ulnaris

d.
Lumbrical #5

e.
Extensor digitorum

Answer 4

c.
Extensor carpi ulnaris

Question 5

Which of the following muscles does not originate on the lateral epicondyle of the humerus?
Question 5 Answer

a.
Extensor carpi radialis brevis

b.
Extensor digiti minimi

c.
Extensor carpi ulnaris

d.
Extensor digitorum

e.
Extensor carpi radialis longus

Answer 5

e.
Extensor carpi radialis longus

Question 6

Which of the following makes up the posterior boundary of the anatomical snuffbox?
Question 6 Answer

a.
Abductor pollicis longus

b.
Extensor indicis

c.
Abductor pollicis brevis

d.
Extensor pollicis longus

e.
Extensor pollicis brevis

Answer 6

d.
Extensor pollicis longus

Question 7

Which finger does the second lumbrical act on?
Question 7 Answer

a.
The first finger

b.
The second finger

c.
The fourth finger

d.
The third finger

Answer 7

d.
The third finger

Question 8

Which of the following muscle tendons does NOT pass through the carpal tunnel?

Question 8 Answer

a.
Flexor carpi radialis

b.
Flexor digitorum superficialis

c.
Flexor pollicis longus

d.
Flexor digitorum profundus

Answer 8

a.
Flexor carpi radialis

Question 9

Which of the following muscles is capable of performing extension and adduction of the hand at the wrist
Question 9 Answer

a.
Extensor carpi ulnaris

b.
Extensor carpi radialis longus

c.
Extensor digiti minimi

d.
Extensor carpi radialis brevis

e.
Extensor digitorum

Answer 9

a.
Extensor carpi ulnaris

Question 10

Which of the following muscles is NOT one of the hypothenar muscles?
Question 10 Answer

a.
4th lumbrical

b.
Palmaris brevis

c.
Opponens digiti minimi

d.
Flexor digiti minimi

Answer 10

a.
4th lumbrical