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Anatomy > Hand > Flashcards

Hand Flashcards

1
Q

swan neck

A

flexion of DIP extension of PIP; lateral bands move dorsally

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2
Q

boutonniere deformity

A

flexion of PIP, extension of DIP; lateral bands move volarly

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3
Q

mallet finger

A

disruption of terminal extensor tendon; lack extension at distal phalanx

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4
Q

jersey finger

A

avulsion fracture of FDP; lack flexion

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5
Q

trigger finger

A

swollen synovium; difficulty with extension, “pops” over nodule

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6
Q

carpal tunnel

A

9 tendons and median nerve

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7
Q

what tendon runs through pisiform?

A

flexor carpi ulnaris

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8
Q

colles fracture

A

FOOSH resulting in fracture of distal radius
dorsal displacement of distal segment
segment distal to fracture goes dorsal

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9
Q

smith fracture

A

FOOSH on back of hand

distal segment goes forward/volarly

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10
Q

dupuytren’s contracture

A

disease of palmar fascia

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11
Q

boxer’s fracture

A

fracture of neck of 5th MCP; sometimes ring finger

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12
Q

dequervain’s syndrome

A

irritation in first dorsal compartment

radial nerve, ABPL, EPB, ECRL

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13
Q

what is the test for dequervain’s syndrome

A

finkelstein test

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14
Q

skier’s thumb

A

ulnar collateral ligament disruption of the thumb

can create instability at the thumb

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15
Q

abductor pollicis brevis origin

A

flexor retinaculum and tubercles of scaphoid and trapezium

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16
Q

abductor pollicis brevis insertion

A

lateral side of base of proximal phalanx of thumb

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17
Q

abductor pollicis brevis nerve

A

median

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18
Q

abductor pollicis brevis action

A

abducts thumb; helps oppose thumb

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19
Q

flexor pollicis brevis origin

A

flexor retinaculum and tubercles of scaphoid and trapezium

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20
Q

flexor pollicis brevis insertion

A

lateral side of base of proximal phalanx of thumb

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21
Q

flexor pollicis brevis innervation

A

median

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22
Q

flexor pollicis brevis action

A

flexes thumb at CMC and MCP joints

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23
Q

opponens pollicis origin

A

flexor retinaculum and tubercles of scaphoid and trapezium

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24
Q

opponens pollicis insertion

A

lateral side of first metacarpal

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25
Q

opponens pollicis innervation

A

medial

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26
Q

opponens pollicis action

A

oppose them; draws 1st metacarpal medially to center of palm and rotates it medially

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27
Q

abductor digiti minimi origin

A

pisiform

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28
Q

abductor digiti minimi insertion

A

medial side of base of proximal phalanx of 5th digit

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29
Q

abductor digiti minimi innervation

A

ulnar

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30
Q

abductor digiti minimi action

A

abducts 5th digit; assists in flexion of its proximal phalanx

31
Q

flexor digiti minimi brevis origin

A

hook of hamate and flexor retinaculum

32
Q

flexor digiti minimi brevis insertion

A

medial side of base of proximal phalanx of 5th digit

33
Q

flexor digiti minimi brevis innervation

A

medial

34
Q

flexor digiti minimi brevis action

A

flexes proximal phalanx of 5th digit

35
Q

opponens digiti minimi origin

A

hook of hamate and flexor retinaculum

36
Q

opponens digit minimi insertion

A

medial border of 5th metacarpal

37
Q

opponens digiti minimi innervation

A

median

38
Q

opponens digiti minimi action

A

draws 5th metacarpal anterior and rotates it, bringing 5th digit into opposition with thumb

39
Q

adductor pollicis origin

A

oblique head: bases of 2nd and 3rd metacarpals, capitate, and adjacent carpals
transverse head: anterior surface of shaft of 3rd metacarpal

40
Q

adductor pollicis insertion

A

medial side of base of proximal phalanx of thumb

41
Q

adductor pollicis innervation

A

ulnar

42
Q

adductor pollicis action

A

adducts thumb towards lateral border of palm

43
Q

lumbricals 1 and 2 origin

A

lateral 2 tendons of flexor digitorum profundus

44
Q

lumbricals 3 and 4 origin

A

medial 3 tendons of FDP

45
Q

all lumbricals insertion

A

lateral sides of extensor expansions of digits 2-5

46
Q

lumbricals 1 and 2 innervation

A

median

47
Q

lumbricals 3 and 4 innervation

A

ulnar

48
Q

all lumbricals action

A

flex MCP joints; extend IP joints of digits 2-5

49
Q

palmar interossei origin

A

palmar surfaces of 2nd, 4th, 5th metacarpals

50
Q

palmar interossei insertion

A

extensor expansions of digits and bases at proximal phalanges of digits 2, 4, 5

51
Q

palmar interossei innervation

A

ulnar

52
Q

palmar interossei action

A

adduct digitions toward axial line (MCP 3) and assist lumbricals in flexing MCP joints and extending IP hoints

53
Q

dorsal interossei origin

A

adjacent sides of 2 metacarpals

54
Q

dorsal interossei insertion

A

bases of proximal phalanges and extensor expansions of digits 2-4

55
Q

dorsal interossei innervation

A

median

56
Q

finklestein

A

dequervian’s tenosynovitis, radial nerve

57
Q

phalen’s and reverse phalen’s

A

median nerve; carpal tunnel syndrome

58
Q

allen’s test

A

clamp arteries, open and close hand, lift one thumb

assess blood flow in hand

59
Q

what is medial to the radial pulse?

A

flexor carpi radialis, palmaris longus

60
Q

lateral boundary of anatomical snuff box

A

abductor pollicis longus, extensor pollicis brevis

61
Q

medial boundary of anatomical snuff box

A

extensor pollicis longus

62
Q

what is the saddle joint of the thumb?

A

trapezium

63
Q

What specific structures pass through the carpal tunnel?

A

9 structures pass through the CT: 4 tendons of FDS, 4 tendons of FDP, FPL and Median nerve

64
Q

Demonstrate palmar abduction and radial abduction of the thumb

A

Palmar abduction: with the handheld in supination bring the thumb up towards the nose in a
sagittal plane. Radial abduction: with the handheld in NAP at the side, bring the thumb away
from the body in the frontal plane.

65
Q

What is the reference point for abduction and adduction of the fingers?

A

Midline in the hand is digit III. A line through digit III is the reference point for abduction and
adduction of the fingers.

66
Q

What is another term for describing radial deviation of the wrist? Ulnar
deviation?

A

Radial deviation is also known as abduction of the hand at the wrist, Ulnar deviation is also
known as adduction of the hand at the wrist.

67
Q

Compression of the median nerve in the CT affects which hand muscles

A

flexor pollicis brevis

68
Q

In an industrial accident a band saw blade breaks free. The patient raises his
hand to block the blade from hitting him in the face and the blade stabs him in
the wrist, just lateral to the pisiform bone. What artery is injured?

A

ulnar artery

69
Q 
The extensor expansion of the ring finger receives tendons from all of the
following except:
a. Dorsal interosseus
b. Extensor carpi ulnaris
c. Extensor digitorum
d. Lumbrical
e. Palmar interosseus
A

b. extensor carpi ulnaris

70
Q

You need to check the pulse of a child with his forearm in a cast. You press
into the anatomical snuffbox to palpate the superficial radial artery. What
tendon lies immediately medial (ulnar) to your finger?

A

extensor pollicis longus

71
Q

The point of insertion of the FDS to the index finger is on the

A

middle phalanx

72
Q

A patient falls while skateboarding and sustains deep lacerations at the wrist
and little finger side of their hand. The wounds are cleaned and then you place a
piece of paper between the adjacent surfaces of the patient’s index and middle
fingers. The patient is unable to squeeze their fingers together with sufficient
force to hold the paper. What nerve may be damaged?

A

ulnar nerve

73
Q

What movement of the thumb would be most affected by a lesion to the median
nerve at the cubital fossa?

A

flexion

Anatomy (16 decks)

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