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. 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

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Category: Hand

2. The recurrent branch of the median nerve supplies:

1. opponens digiti minimi

2. first dorsal interosseous

3. adductor pollicis

4. first lumbrical

5. abductor pollicis brevis

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Category: Hand

3. At the wrist / carpal tunnel:

1. flexor retinaculum attaches to scaphoid and trapezoid laterally

2. all superficial and deep flexors, except flexor pollicis longus, share a common flexor sheath

3. the ulnar nerve lies medial to pisiform

4. tendons of flexor digitorum remain attached until they reach the palm

5. None of the above

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Category: Hand

4. 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

5. 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

6 / 30

Category: Hand

6. 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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Category: Hand

7. 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

8 / 30

Category: Hand

8. 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

9 / 30

Category: Hand

9. 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

10 / 30

Category: Hand

10. 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

11 / 30

Category: Hand

11. 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

12 / 30

Category: Hand

12. Laceration of the recurrent branch of the median nerve results in paralysis of all the following muscles of

1. abductor pollicis brevis

2. deep head of flexor pollicis brevis

3. opponens pollicis

4. superficial head of flexor pollicis brevis

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. 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

15 / 30

Category: Hand

15. 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

16 / 30

Category: Hand

16. Types of muscles, which pairing is INCORRECT?

1. unipennate – flexor pollicis longus

2. bipennate – 4 lumbrical

3. fusiform – supraspinatus

4. bipennate – soleus

5. multi-pennate – anterior deltoid

17 / 30

Category: Hand

17. 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

18 / 30

Category: Hand

18. The palmar interossei:

1. abduct the fingers

2. are usually supplied by a branch of the ulnar nerve

3. have two heads

4. arise from the medial side of the metacarpal bone of the index, ring and little fingers

5. have no role in extension of the terminal phalanges

19 / 30

Category: Hand

19. Which carpal bone is most commonly dislocated?

1. Hamate

2. scaphoid

3. trapezium

4. capitate

5. pisiform

20 / 30

Category: Hand

20. 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

21 / 30

Category: Hand

21. Regarding the interosseous muscle:

1. the palmar interossei have two heads

2. there are usually four palmar interossei

3. the tendons pass on the posterior side of the deep transverse ligament

4. they insert into the extensor expansion, not the proximal phalanges

5. they are supplied by the superficial branch of the ulnar nerve (C8, T1)

22 / 30

Category: Hand

22. 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

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Category: Hand

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

1. scaphoid

2. trapezoid

3. hamate

4. triquetral

5. pisiform

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Category: Hand

24. 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

25 / 30

Category: Hand

25. 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

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

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Category: Hand

27. Structures in the anatomical snuff box include all the following EXCEPT:

1. the radial tubercle

2. the scaphoid

3. the base of the thumb metacarpal

4. the trapezium

5. the radial artery

28 / 30

Category: Hand

28. 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

29 / 30

Category: Hand

29. 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

30 / 30

Category: Hand

30. Which structure does NOT insert into the flexor retinaculum?

1. abductor pollicis brevis

2. flexor digiti minimi brevis

3. palmaris longus

4. opponens pollicis

5. flexor pollicis brevis

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Online Quiz: The Hand

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