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. 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

2 / 30

Category: Hand

2. 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

3 / 30

Category: Hand

3. 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

4 / 30

Category: Hand

4. 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

5 / 30

Category: Hand

5. 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

6 / 30

Category: Hand

6. 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

7 / 30

Category: Hand

7. 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

8 / 30

Category: Hand

8. 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

9 / 30

Category: Hand

9. 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

10 / 30

Category: Hand

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

1. scaphoid

2. triquetral

3. capitate

4. radius

5. trapezoid

11 / 30

Category: Hand

11. 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)

12 / 30

Category: Hand

12. 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

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. The metacarpophalangeal joints are:

1. planar

2. ellipsoid

3. hinge

4. saddle

5. ball in socket

15 / 30

Category: Hand

15. 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

16 / 30

Category: Hand

16. Which carpal bone is most commonly dislocated?

1. Hamate

2. scaphoid

3. trapezium

4. capitate

5. pisiform

17 / 30

Category: Hand

17. 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

18 / 30

Category: Hand

18. 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)

19 / 30

Category: Hand

19. 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

20 / 30

Category: Hand

20. 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

21 / 30

Category: Hand

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

1. scaphoid

2. trapezoid

3. hamate

4. triquetral

5. pisiform

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

23 / 30

Category: Hand

23. 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

24 / 30

Category: Hand

24. 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

25 / 30

Category: Hand

25. 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

26 / 30

Category: Hand

26. 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

27 / 30

Category: Hand

27. 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

28 / 30

Category: Hand

28. 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

29 / 30

Category: Hand

29. The median nerve goes through the heads of which

1. biceps brachii

2. supinator

3. pronator teres

4. pronator quadratus

5. flexor digitorum superficialis

30 / 30

Category: Hand

30. 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

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Online Quiz: The Hand

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