Online quiz on the anatomy of the human hand

/30

1 votes, 5 avg

Created on September 04, 2022 By

Prof Kehinde Oluwadiya

Hand

The Hand Quiz

1 / 30

Category: Hand

1. With respect to the flexor retinaculum:

1. it is pierced by the tendon of flexor carpi ulnaris

2. it attaches to the scaphoid, hamate, pisiform and trapezium

3. the tendon of palmaris longus passes deep to it

4. the median nerve passes superficial to it

5. the ulnar artery passes deep to it

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Category: Hand

2. Regarding the extensor retinaculum:

1. septa divide the extensor region into four compartments

2. it attaches to the ulnar styloid

3. the four extensor digitorum tendons lie deep to extensor indicis

4. it is a thickening of the deep fascia of the forearm

5. it lies transversely across the extensor surface of the wrist joint

3 / 30

Category: Hand

3. Infection in the volar aspect of the little finger can spread to all EXCEPT

1. distally to the ring finger via the tendon sheath

2. to the flexor sheath of the thumb

3. to the distal forearm through the carpal tunnel

4. rupture of the sheath and spread to deep spaces of the palm

5. ischaemic necrosis may occur to the flexor tendon involved

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Category: Hand

4. Regarding the synovial flexor sheaths, which of the which of the following is NOT true?

1. three synovial sheaths are found on the front of the wrist

2. a common synovial sheath envelops all the superficialis and profundus tendons

3. the sheath around flexor pollicis longus tendon extends almost to its insertion

4. the flexor carpi ulnaris tendon has a short sheath

5. the ring, middle and index fingers have digital sheaths that do not extend to the common sheath

5 / 30

Category: Hand

5. Compression of structures in the carpal tunnel usually results in:

1. weakness of the forearm flexors

2. weakness of flexion of the terminal phalanx of the thumb

3. weakness of the interossei muscles

4. normal sensation on the palmar surface of the little finger

5. weakness of the lumbrical muscles

6 / 30

Category: Hand

6. Holding a heavy hammer in your hand involves:

1. only the long flexors of the fingers

2. flexion of wrist to strengthen grip

3. immobilisation of the shoulder joint to strengthen grip

4. only the long flexors of fingers and opposition of the thumb

5. requires synergic contraction of wrist extensors

7 / 30

Category: Hand

7. Of the hand joints, which is INCORRECT?

1. the midcarpal joint is S shaped

2. joint between hamate and fifth metacarpal is most mobile at four digits

3. the first carpometacarpal joint is reinforced by the medial and palmar ligaments

4. palmar ligaments of metacarpophalangeal joints limit extension of joint

5. interphalangeal joints ????have to obliquely place collateral ligaments as a mechanism of tightening re flexion and extension

8 / 30

Category: Hand

8. A child has gashed the palmar aspect of her wrist on some glass. which of the following would be would be evidence of damage to her median nerve?

1. inability to flex the distal interphalangeal joint of the index finger

2. inability to flex the interphalangeal joint of the thumb

3. loss of sensation to the palmar aspect of the little finger

4. inability to oppose the thumb and little finger

5. inability to abduct the index finger

9 / 30

Category: Hand

9. Regarding the thumb:

1. abductor pollicis longus originates from both radius and ulna

2. opponens pollicis rotates the first metacarpal on the triquetral

3. adductor pollicis inserts on to the radial sesamoid of the thumb, then the base of the proximal phalanx

4. nerve supply is by the median nerve (C7, C8)

5. adductor pollicis lies superficial to the thenar space

10 / 30

Category: Hand

10. Regarding the hand:

1. deep palmar arch is level with the distal border of the outstretched thumb web

2. the superficial branch of the ulnar nerve supplies the hypothenar muscles

3. deep branch of the ulnar nerve lies within the concavity of the deep palmar arch

4. flexor digitorum superficialis tendon inserts into the base of the distal pharynx

5. lumbricals insert into the extensor expansion and proximal phalanges

11 / 30

Category: Hand

11. The superficial branch of the ulnar nerve supplies:

1. palmaris brevis

2. flexor digitorum ulnaris

3. palmar aspect index finger

4. opponens pollicis

5. thenar eminence

12 / 30

Category: Hand

12. The lunate articulates with all of the following EXCEPT:

1. scaphoid

2. triquetral

3. capitate

4. radius

5. trapezoid

13 / 30

Category: Hand

13. Which is true?

1. the flexor synovial sheath is only continuous from wrist to distal phalanx in the thumb

2. the medial cutaneous nerve is the smallest nerve branch of the brachial plexus

3. the capitate bone within the carpus is the last of these to ossify

4. the pisiform bone is the first bone of the carpus to ossify

5. superficial lymphatics lie with arteries, deep lymphatics with veins

14 / 30

Category: Hand

14. Which muscle arises in part from the scaphoid tubercle?

1. flexor pollicis brevis

2. abductor pollicis brevis

3. opponens pollicis

4. adductor pollicis

5. first palmar interossei

15 / 30

Category: Hand

15. Which of the following structures IS NOT one of the contents of the carpal tunnel?

1. flexor digitorum superficialis

2. ulnar artery

3. flexor digitorum profundus

4. median nerve

5. flexor pollicis longus

16 / 30

Category: Hand

16. All of the following structures pass deep to the transverse carpal ligament EXCEPT the:

1. flexor digitorum superficialis tendon

2. flexor digitorum profundus tendon

3. flexor pollicis longus tendon

4. median nerve

5. ulnar artery

17 / 30

Category: Hand

17. The anatomical snuff box:

1. has the tendon of extensor pollicis brevis on its ulnar side

2. has the radial artery lying in its floor

3. has the radial styloid process as the only palpable bony point

4. has the tendon of abductor pollicis brevis on its radial side

5. contains the origin of the basilic vein

18 / 30

Category: Hand

18. With respect to the thenar muscles:

1. abductor pollicis brevis inserts into the base of the distal phalanx of the thumb

2. all arise from the flexor retinaculum

3. flexor pollicis brevis is usually supplied by a branch from the ulnar nerve

4. abductor pollicis brevis has no role in opposition of the thumb

5. opponens pollicis is the most superficial muscle of the group

19 / 30

Category: Hand

19. The skin of the top of the index finger is supplied by:

1. radial nerve only

2. median nerve only

3. ulnar nerve only

4. radial and ulnar nerve

5. radial and median nerve

20 / 30

Category: Hand

20. Which of the following IS NOT true about the flexor carpi ulnaris?

1. acts as a synergist during wrist extension

2. ulnar artery passes deep to its deep head

3. inserts into base of fifth metacarpal

4. most medial muscles arising from the common flexor origin

5. ulnar nerve passes between its two heads

21 / 30

Category: Hand

21. At the carpal tunnel:

1. the flexor tendon synovial sheath is incomplete on the ulnar side

2. the superficial tendons lie in the same plane

3. the four profundus tendons have not yet separated

4. the median nerve lies lateral to flexor digitorum superficialis

5. median nerve compression causes anaesthesia over the thenar eminence

22 / 30

Category: Hand

22. Extensor pollicis brevis:

1. origin – radius and interosseous membrane

2. lies on ulnar side of snuffbox

3. inserts into the base of the first distal phalanx

4. nerve supply = ulnar nerve

5. joins extensor digitorum tendon at metacarpophalangeal joint

23 / 30

Category: Hand

23. Regarding innervation of hand muscles:

1. opponens pollicis may be supplied by ulnar nerve

2. opponens digiti minimi may be supplied by median nerve

3. two radial interossei are usually supplied by median nerve

4. nail beds are supplied 3½ to 1½ by branches of radial and ulnar nerves

5. None of the above

24 / 30

Category: Hand

24. The carpus:

1. there are five extensor tunnel compartments

2. the extensor expansion attaches to the anterolateral border of the radius above the styloid process, and distally to the pisiform and trapezoid bones

3. the radiocarpal joint is an uniaxial synovial joint

4. there are no muscular attachments to the extensor surface of the carpus

5. the bones palpable in the anatomical snuff box are the radial styloid, triquetral, scaphoid and base of first metacarpal

25 / 30

Category: Hand

25. Regarding the anatomical snuffbox:

1. the cephalic vein begins in the roof

2. the extensor pollicis brevis tendon forms the ulnar side

3. the trapezoid is palpable in the base

4. the cutaneous branches of the radial nerve run deep to the tendons

5. the flexor pollicis longus tendon forms the radial side

26 / 30

Category: Hand

26. The extensor retinaculum:

1. lies transversely across the extensor surface of the wrist joint

2. is attached to the radius and the ulna

3. is attached to the pisiform

4. is attached to the scaphoid

5. is attached to the trapezium

27 / 30

Category: Hand

27. The superficial palmar arch:

1. lies level with the distal border of the outstretched thumb

2. is supplied mainly from the radial artery

3. supplies the thumb

4. lies deep to the long flexor tendons

5. arises proximal to the flexor retinaculum

28 / 30

Category: Hand

28. Regarding the intrinsic muscles of the hand, which of the following is NOT true?

1. the palmar and dorsal interossei are supplied by the deep branch of the median nerve

2. the intrinsic muscles of the thumb are abductor pollicis brevis, flexor pollicis brevis, opponens pollicis , adductor pollicis, first palmar and first dorsal interossei

3. opponens pollicis acts only on the carpometacarpal joint

4. their motor supply is derived from segment T1 of the spinal cord

5. the thenar muscles are supplied by the recurrent branch of the median nerve

29 / 30

Category: Hand

29. All the following statements concerning the scaphoid are true EXCEPT

1. it articulates with radius proximally in abduction

2. it is the most susceptible of the carpal bones to fracture

3. it participates in the midcarpal joint

4. it receives an attachment for the transverse carpal ligament

5. fracture of the scaphoid is a common cause for median nerve compression in carpal tunnel syndrome

30 / 30

Category: Hand

30. Extensor indicis:

1. tendon lies on radial side of E.D. tendon index finger

2. separate insertion from dorsal expansion E.D.

3. nerve supply = median nerve

4. origin = radius

5. shares a common synovial sheath with E.D. (?extensor digitorum)

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Online Quiz: The Hand

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