Online quiz on the anatomy of the human hand

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Created on September 04, 2022 By

Prof Kehinde Oluwadiya

Hand

The Hand Quiz

1 / 30

Category: Hand

1. 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

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Category: Hand

2. Wrist:

1. the flexor retinaculum runs between the styloid process of the radius and the pisiform and hook of hamate

2. the median nerve passes beneath the flexor retinaculum between flexor digitorum superficialis and flexor carpi ulnaris

3. the ulnar nerve lies on the flexor retinaculum with the ulnar artery on its ulnar side

4. the wrist joint involves the radius, ulna, scaphoid, lunate and triquetral bones

5. the radiocarpal joint is separated from the distal radioulnar joint by a triangular fibrocartilage

3 / 30

Category: Hand

3. 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

4 / 30

Category: Hand

4. 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

5 / 30

Category: Hand

5. The anatomical snuff box:

1. is crossed by cutaneous branches of the median nerve

2. has the anterior interosseous artery on its floor

3. contains the origin of the basilic vein

4. has extensor pollicis longus on the radial side

5. is crossed by cutaneous branches of the radial nerve

6 / 30

Category: Hand

6. 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

7 / 30

Category: Hand

7. 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

8 / 30

Category: Hand

8. 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

9 / 30

Category: Hand

9. The wrist (radiocarpal) joint:

1. has a synovial cavity continuous with the inferior radioulnar joint

2. has a synovial cavity continuous with the midcarpal joint

3. permits flexion, extension, adduction and abduction, but little rotation

4. has the articular surface of the radius facing distally, medially and dorsally

5. has the flexor retinaculum anterior to it

10 / 30

Category: Hand

10. Compression of the median nerve in the carpal tunnel produces:

1. anaesthesia over the thenar eminence

2. wasting of the hypothenar eminence

3. loss of power of opposition of the thumb

4. anaesthesia of the little finger

5. loss of power of flexion of the thumb

11 / 30

Category: Hand

11. 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

12 / 30

Category: Hand

12. 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

13 / 30

Category: Hand

13. 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

14 / 30

Category: Hand

14. 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

15 / 30

Category: Hand

15. 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

16 / 30

Category: Hand

16. With respect to the carpus:

1. the intercarpal joints share one continuous synovial space

2. the intercarpal synovial space is usually continuous with the wrist

3. the proximal row consists of scaphoid, lunate and trapezium

4. the scaphoid is the only carpal bone which articulates with the radius

5. in pronation/supination, the carpus moves with the ulna

17 / 30

Category: Hand

17. 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

18 / 30

Category: Hand

18. 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

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Category: Hand

19. 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

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Category: Hand

20. 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

21 / 30

Category: Hand

21. In the carpal tunnel:

1. the individual tendons arising from flexor digitorum profundus are all fused, and do not separate until they reach the palm

2. the synovial sheath of flexor digitorum superficialis arises from the ulna bursa, but the sheath of profundus does not

3. the tendon for the index finger from flexor digitorum superficialis lies medial to the median nerve

4. flexor carpi radialis and flexor pollicis longus tendons share a synovial sheath

5. the tendon of flexor digitorum superficialis to the middle finger lies deep to the tendons to the little finger

22 / 30

Category: Hand

22. 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

23 / 30

Category: Hand

23. The extensor retinaculum attaches between:

1. radius and ulna

2. scaphoid and ulna

3. radius and triquetral and pisiform

4. radius and lunate

5. trapezium and ulnar

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Category: Hand

24. The only carpal bone to give attached to both flexor and extensor retinacula is:

1. scaphoid

2. trapezoid

3. hamate

4. triquetral

5. pisiform

25 / 30

Category: Hand

25. 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

26 / 30

Category: Hand

26. 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

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. The lunate articulates with all of the following EXCEPT:

1. scaphoid

2. triquetral

3. capitate

4. radius

5. trapezoid

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Category: Hand

29. The lumbrical muscles:

1. arise from the four superficial tendons

2. are all bicipital muscles

3. pass along the ulnar side of the metacarpophalangeal joint

4. flex the metacarpophalangeal joint

5. attach directly to the first phalanx

30 / 30

Category: Hand

30. Hand:

1. palmar brevis lies across the base of the thenar eminence

2. abductor pollicis brevis and opponens pollicis both arise from the flexor retinaculum and adjacent trapezium

3. flexor pollicis brevis lies to radial side of abductor pollicis brevis

4. the muscles of the thenar eminence are usually supplied by the recurrent branch of the median nerve

5. opponens pollicis inserts into the whole of the ulnar border of the first metacarpal

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Online Quiz: The Hand

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About the Author: Prof Kehinde Oluwadiya

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Online Quiz: The Hand

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