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Fall 2014: Anatomy & Kinesiology > Week 7: Wrist and Hand > Flashcards

Week 7: Wrist and Hand Flashcards

1
Q

Actions (2) of ECRL

A
  1. Extension

2. Radial deviation of hand at the wrist

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2
Q

Origin of ECRL

A

Lateral supracondylar ridge of the humerus

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3
Q

Insertion of ECRL

A

Base of 2nd metacarpal

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4
Q

Innervation of ECRL

A

Radian N

c6-c7

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5
Q

Actions (2) of ECRB?

A
  1. Extension

2. Radial deviation of hand at the wrist

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6
Q

Origin of ECRB?

A

Lateral epicondyle of the humerus via the common extensor tendon

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7
Q

Insertion of ECRB?

A

base of 3rd metacarpal

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8
Q

Innervation of ECRB?

A

Radial N

C7-C8

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9
Q

Actions (2) of ECU?

A
  1. Extension

2. Ulnar deviation of the hand at the wrist

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10
Q

Origin of ECU?

A

Lateral epicondyle of the humerus via the common extensor tendon

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11
Q

Insertion of ECU?

A

base of 5th metacarpal

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12
Q

Innervation of ECU?

A

Radial N.

C7-C8

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13
Q

Action of PL?

A

flexion of hand @ wrist

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14
Q

Origin of PL?

A

Medial epicondyle of the humerus via the common flexor tendon

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15
Q

Insertion of PL?

A

Palmar aponeurosis

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16
Q

Innervation of PL?

A

Median Nerve C7-C8

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17
Q

Actions (2) of FCR?

A
  1. Flexion

2. Radially Deviation of the hand at the wrist

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18
Q

Origin of FCR?

A

Medial epicondyle of the humerus via the common flexor tendon

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19
Q

Insertion of FCR?

A

base of the 2nd metacarpal

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20
Q

Innervation of FCR?

A

Median N.

C6-C7

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21
Q

Actions (2) of FCU

A
  1. Flexion

2. Ulnar deviation of the hand at the wrist

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22
Q

Origin of FCU

A

Medial epicondyle of the humerus via the common flexor tendon

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23
Q

Insertion of FCU

A

Pisiform Bone

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24
Q

Innervation of FCU

A

Ulnar N. (C7-C8)

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25
Q

What part bones of the hand does the distal ulna articulate with?

A

none, it does not connect directly; there is a fibrocartilage disk that separates them

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26
Q

What bones (2) of the hand does the distal radius articulate with?

A

lunate

scaphoid

27
Q

Which carpal bone does not have 4 articulating surfaces?

A

pisiform

28
Q

This carpal bone is located by the distal styloid process of the radius and comes out during UD?

A

Scaphoid

29
Q

This carpal bone is located near the capitate and can be seen with PROM when the hand is flexed?

A

Lunate

30
Q

This carpal bone is pea shaped

A

Pisiform

31
Q

This carpal bone is proximal to the 1st metacarpal joint and joint space

A

Trapezium

32
Q

This carpal bone is the hardest to palpate in the hand?

A

Trapezoid

33
Q

This carpal bone is in line with the middle finger and is known for its slight depression

A

Capitate

34
Q

This carpal bone can be very tender and can be found near the palm of the hand

A

Hamate

35
Q

These 4 carpal bones make up the “proximal” row of the hand

A

scaphoid
lunate
triquetrium
pisiform

36
Q

These 4 carpal bones make up the “distal” row of the hand

A

trapezium
trapezoid
capitate
hamate

37
Q

What 3 tendons make up the anatomical snuff box?

A

extensor pollicis longus
extensor pollicis brevis
abductor pollicis longus

38
Q

the radiocarpal joint connects what structures?

A

distal end of radius to proximal surfaces of scaphoid and lunate

39
Q

what 2 actions can occurs at the radiocarpal joint?

A

wrist flexion/extension

UD/RD

40
Q

at the midcarpal joint, what three carpal bones articulate with the scaphoid?

A

trapezium
trapezoid
capitate

41
Q

at the midcarpal joint, which carpal bone articulates with the lunate?

A

capitate

42
Q

at the midcarpal joint, which carpal bone articulates with the triquetrium?

A

hamate

43
Q

what 2 actions can occurs at the midcarpal joint?

A

wrist flexion/extension

UD/RD

44
Q

What structures are connected at the ulnarcarpal articulation?

A

Distal radius and styloid process of the ulna to the Triquetrium of the hand

45
Q

What structure functions to keep things together and absorb shock within the ulnarcarpal articulation?

A

Triangular fibrocartilage complex (TFCC)

46
Q

What is the function of the extrinsic ligaments of the wrist?

A

connect radius, ulna, or metacarpal bones to the carpal bones

47
Q

What is the function of the intrinsic ligaments of the wrist?

A

connect carpal bones only

48
Q

Name the ligaments (3) that are responsible for keeps the radius and carpal bones connected

A

Volar radiocarpal ligaments (VRCL)
Dorsal radiocarpal ligaments (DRCL)
Radial collateral ligaments

49
Q

4 ligaments that make up the VRCL?

A

radioscaphoid lunate
radiolunate
radioscaphoid capitate
radiotriquetrium

50
Q

Which ligament of the the VCRL is the strongest?

A

radiotriquetrium

51
Q

Which ligament is most important for motion and stability of the wrist (esp. during rotation?

A

VCRL

52
Q

Which ligaments provide passive control for the radiocarpal motion?

A

radial and ulnar collateral ligaments

53
Q

What structure forms the border of the carpal tunnel?

A

flexor retinaculum

54
Q

What 5 structures make up the carpal tunnel?

A 
FDT
FDS
FCR
FPL
Median N.
55
Q

This provides the origin site for the thumb?

A

flexor retinaculum

56
Q

This superficial ligament spans the carpal arch and maintains the arch on the palmar side of the wrist?

A

flexor retinaculum

57
Q

What does the flexor retinaculum attach?

A

hook of hamate and pisiform to the scaphoid and trapezoid

58
Q

What does the extensor retinaculum attach?

A

trapezium to the lateral side of radius

59
Q

Radial N, APL, and EPB make up which compartment of the ER?

A

1st

60
Q

ECU makes up which compartment of the ER?

A

6th

61
Q

EDM makes up which compartment of the ER?

A

5th

62
Q

ECRL and ECRB make up which compartment of the ER?

A

2nd

63
Q

EPL makes up which compartment of the ER?

A

3rd

64
Q

EI and EDC make up which compartment of the ER?

A

4th

Fall 2014: Anatomy & Kinesiology (12 decks)

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