Wrist and Hand

Question 1

Distal radius and ulna bony points

Answer 1

Radial and ulna styloid process, dorsal tubercle of radius, head of ulna

Question 2

What is the triangular fibrocartilage complex?

Answer 2

A load bearing structure between the lunate, triauitreum and ulna head acting as a stabaliser for the ulnar aspect

Question 3

Where is the pisiform located?

Answer 3

A sesamoid bone embedded in the tendon of the flexor carpi ulnaris on the palmar surface of the triquitreal

Question 4

Which is the largest carpal?

Answer 4

Capitate

Question 5

Which carpal articulates with MT IV and V?

Answer 5

Hamate

Question 6

Which carpal is important for thumb mobility and has a tubercle?

Answer 6

Trapezium

Question 7

Which is the most lateral, proximal carpal (has a tubercle)

Answer 7

Scaphoid

Question 8

What type of joint is the radiocarpal and what are the articulations?

Answer 8

Synovial ellipsoid with two degrees of freedom, distal radius, triangular fibrocartilaginous disc, scaphoid, lunate and triquitreal

Question 9

Which ligaments are at the RCJ?

Answer 9

Palmar and dorsal radiocarpal and radial collateral and ulnar collateral

Question 10

What type of joint is the mid carpal joint and what are the articulations?

Answer 10

Synovial complex saddle with 2 degrees of freedom, proximal distal rows of carpal bones with joint capsule

Question 11

Which ligaments are at the MCJ?

Answer 11

Intercarpal palmar, intercarpal dorsal, medial and lateral collateral

Question 12

Which muscles produce flexion at the wrist and estimate degrees

Answer 12

85, flexor carpi ulnaris/radialis, palmaris longus, flexor digitorum superficialis/ profundus, flexor pollicis longus, MCJ 60

Question 13

Which muscles produce extension at the wrist, estimate degrees

Answer 13

85, extensor carpi radialis longus and brevis, extensor carpi ulnaris, extensor digitorum, extensor digiti minimi, extensor indicis, extensor pollicis longus and brevis

Question 14

Which muscles produce radial deviation, estimate degrees

Answer 14

15, flexor carpi radialis, extensor carpi radialis longus and brevis, abductor pollicis longus, extensor pollicis brevis

Question 15

Which muscles produce ulnar deviation, estimate degrees

Answer 15

45, flexor carpi ulnaris, extensor carpi ulnaris

Question 16

Which type of joint is the first carpometacarpal joint and what are the articulations?

Answer 16

Synovial saddle with three degrees of freedom, trapezium and base of I

Question 17

What ligaments are at the first CMC joint?

Answer 17

Radial CMC, anterior oblique, posterior oblique

Question 18

Which muscles produce thumb flexion, estimate degrees

Answer 18

40-50, flexor pollicis longus and brevis

Question 19

Which muscles produce thumb extension, estimate degrees

Answer 19

40-50, extensor pollicis longus and brevis

Question 20

Which muscles produce thumb adduction, estimate degrees

Answer 20

80, adductor pollicis

Question 21

Which muscles produce thumb abduction, estimate degrees

Answer 21

80, abductor pollicis

Question 22

Which muscle produces thumb opposition?

Answer 22

Opponens pollicis

Question 23

Which type of joint is the intercarpal joint and what are the articulations and movements?

Answer 23

Synovial plane, between individual carpal bones, small glides (mainly capitate)

Question 24

Which type of joint is the metacarpophalangeal and what are the articulations?

Answer 24

Synovial ellipsoid with two degrees of freedom, articulations between metacarpal head and base of phalanx

Question 25

Which ligaments occur at the IC joints?

Answer 25

Dorsal palmar, intercarpal and interosseous

Question 26

Which ligaments occur at the MCP joint?

Answer 26

Palmar, collateral, transverse metacarpal and deep transverse

Question 27

Which type of joint is the interphalangeal?

Answer 27

Synovial hinge with one degree of freedom, proximal and distal

Question 28

What are the ligaments at the interphalangeal joint?

Answer 28

Collateral and palmar ligaments

Question 29

Which muscles produce finger extension?

Answer 29

Extensor digitorum, extensor digiti minimi, extensor indicis

Question 30

Which muscles produce finger flexion?

Answer 30

Flexor digitorum superficialis, flexor digitorum profundus

Question 31

Which muscles produce finger abduction?

Answer 31

Dorsal interosseous

Question 32

Which muscles produce finger adduction?

Answer 32

Palmar interosseous

Question 33

Which muscles produce movements in the little finger?

Answer 33

Flexion - flexor digiti minimi
Abduction - abductor digiti minimi
Opposition - opponens digiti minimi

Question 34

Which muscles are innovated by the ulnar nerve?

Answer 34

Flexor digitorum profundus, adductor pollicis, interossei dorsal/palmar, flexor digiti minimi, flexor carpi ulnaris

Question 35

Which muscles are innovated by the radial nerve?

Answer 35

Extensor digiti minimi

Question 36

Which muscles are innovated by the median nerve?

Answer 36

Flexor digitorum profundus and superficialis, flexor pollicis longus and brevis, opponens pollicis, flexor carpi radialis longus and brevis, palmaris longus

Question 37

Which muscles are innovated by the posterior interosseous nerve?

Answer 37

Extensor carpi ulnaris, extensor digitorum, extensor indicis, extensor pollicis longus and brevis, abduction pollicis

Question 38

Which muscles are innovated by the lateral plantar nerve?

Answer 38

Abductor digiti minimi