Wrist and Hand Flashcards

1
Q

Distal radius and ulna bony points

A

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

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2
Q

What is the triangular fibrocartilage complex?

A

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

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3
Q

Where is the pisiform located?

A

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

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4
Q

Which is the largest carpal?

A

Capitate

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5
Q

Which carpal articulates with MT IV and V?

A

Hamate

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6
Q

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

A

Trapezium

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7
Q

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

A

Scaphoid

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8
Q

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

A

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

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9
Q

Which ligaments are at the RCJ?

A

Palmar and dorsal radiocarpal and radial collateral and ulnar collateral

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10
Q

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

A

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

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11
Q

Which ligaments are at the MCJ?

A

Intercarpal palmar, intercarpal dorsal, medial and lateral collateral

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12
Q

Which muscles produce flexion at the wrist and estimate degrees

A

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

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13
Q

Which muscles produce extension at the wrist, estimate degrees

A

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

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14
Q

Which muscles produce radial deviation, estimate degrees

A

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

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15
Q

Which muscles produce ulnar deviation, estimate degrees

A

45, flexor carpi ulnaris, extensor carpi ulnaris

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16
Q

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

A

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

17
Q

What ligaments are at the first CMC joint?

A

Radial CMC, anterior oblique, posterior oblique

18
Q

Which muscles produce thumb flexion, estimate degrees

A

40-50, flexor pollicis longus and brevis

19
Q

Which muscles produce thumb extension, estimate degrees

A

40-50, extensor pollicis longus and brevis

20
Q

Which muscles produce thumb adduction, estimate degrees

A

80, adductor pollicis

21
Q

Which muscles produce thumb abduction, estimate degrees

A

80, abductor pollicis

22
Q

Which muscle produces thumb opposition?

A

Opponens pollicis

23
Q

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

A

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

24
Q

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

A

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

25
Which ligaments occur at the IC joints?
Dorsal palmar, intercarpal and interosseous
26
Which ligaments occur at the MCP joint?
Palmar, collateral, transverse metacarpal and deep transverse
27
Which type of joint is the interphalangeal?
Synovial hinge with one degree of freedom, proximal and distal
28
What are the ligaments at the interphalangeal joint?
Collateral and palmar ligaments
29
Which muscles produce finger extension?
Extensor digitorum, extensor digiti minimi, extensor indicis
30
Which muscles produce finger flexion?
Flexor digitorum superficialis, flexor digitorum profundus
31
Which muscles produce finger abduction?
Dorsal interosseous
32
Which muscles produce finger adduction?
Palmar interosseous
33
Which muscles produce movements in the little finger?
Flexion - flexor digiti minimi Abduction - abductor digiti minimi Opposition - opponens digiti minimi
34
Which muscles are innovated by the ulnar nerve?
Flexor digitorum profundus, adductor pollicis, interossei dorsal/palmar, flexor digiti minimi, flexor carpi ulnaris
35
Which muscles are innovated by the radial nerve?
Extensor digiti minimi
36
Which muscles are innovated by the median nerve?
Flexor digitorum profundus and superficialis, flexor pollicis longus and brevis, opponens pollicis, flexor carpi radialis longus and brevis, palmaris longus
37
Which muscles are innovated by the posterior interosseous nerve?
Extensor carpi ulnaris, extensor digitorum, extensor indicis, extensor pollicis longus and brevis, abduction pollicis
38
Which muscles are innovated by the lateral plantar nerve?
Abductor digiti minimi