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OTD806 > Unit I Lec 15-16b > Flashcards

Unit I Lec 15-16b Flashcards

1
Q

Tunnels for long flexor tendons on the meteacarpals

A

fibrous sheaths (synovial sheath)

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2
Q

Feature of fibrous sheath that allows tendons to slide back and forth friction free

A

synovial fluid

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3
Q

Problem of nodule on fibrous sheath causing flexor tendon to stick in fibrous sheath

A

trigger finger

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4
Q

Three main nerves in hand

A

median nerve, superficial radial nerve, ulnar nerve

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5
Q

Two branches of ulnar nerve in hand

A

volar cutaneous branch, dorsal cutaneous branch

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6
Q

Dorsolateral aspect of hand, digits 1-3 to distal IP joint are innervated by

A

superficial radial

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7
Q

Tips of digits , dorsal side, 1-3 are innervated by

A

median nerve

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8
Q

Dorsomedial aspect of hand, digits 4-5 are innervated by

A

ulnar nerve

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9
Q

On palmar side, hypothenar, digit 5, later half of digit 4 are innervated by

A

ulnar nerve

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10
Q

On palmar side, medial half of digit 4 to digit 1, including palm are innervated by

A

median nerve

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11
Q

What nerve travels through flexor retinaculum

A

median nerve

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12
Q

Band of tissue between hypothenar and thenar eminences

A

flexor retinaculum

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13
Q

Tunnel through flexor retinaculum

A

carpal tunnel

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14
Q

Floor of carpal tunnel are what bones

A

distal row of carpal bones

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15
Q

Roof of carpal tunnel

A

flexor retinaculum

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16
Q

Impingement of the median nerve in the carpal tunnel

A

carpal tunnel syndrome

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17
Q

Pregnancy, ergonomics, fluid are all causes of

A

carpal tunnel syndrome

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18
Q

number of tendons passing through carpal tunnel

A

8

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19
Q

Problem of sensation in digits 1-3, dorsolateral aspect of hand, thenar eminence

A

median nerve neuropathy

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20
Q

Flexor digitorum superficialis, flexor digitorum profundus, flexor pollicis longus tendons all go through the

A

carpal tunnel

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21
Q

Artery nad nerve that does not go through carpal tunnel

A

ulnar artery and nerve

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22
Q

Tendon that does not go through the carpal tunnel

A

flexor carpi radialis

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23
Q

Superficial tendon that does not go through the carpal tunnel

A

palmeris longus

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24
Q

Small nerve that does not go through the carpal tunnel

A

palmar cutaneous branch of the median nerve

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25
Q

Palmar cutaneous branch of the median nerve supplies sensation to what

A

thenar eminence

26
Q

Would thenar eminence lose senssation in carpal tunnel syndrome?

27
Q

Band of tissue on dorsal side of hand connecting radius and ulna, continuous with palmar carpal ligament

A

extensor retinaculum

28
Q

Purpose of extensor retinaculum

A

hold extensor tendons in place

29
Q

Number of compartments in extensor retinaculum

30
Q

Compartment 1 of extensor retinaculum contains

A

abductor pollicis longus, extensor pollicis brevis

31
Q

Problem affecting thumb resulting from problems in compartment 1 of extensor retimaculum

A

De Quervain’s tenosynovitis

32
Q

Compartment 2 of extensor retinaculum contains

A

extensor carpi radialis longus and brevis

33
Q

Compartment 3 of extensor retinaculum contains

A

extensor pollicis longus

34
Q

Compartment 4 of extensor retinaculum contains

A

extensor digitorum, extensor indicis

35
Q

Compartment 5 of extensor retinaculum contains

A

extensor digiti minimi

36
Q

Compartment 6 of extensor retinaculum contains

A

extensor carpi ulnaris

37
Q

Broad band of extensor digitorum tendon to dorsal aspect of digit, similar to aponeurosis, with lumbricle, palmer interosseus, dorsal interosseous mx inserting

A

extensor hood

38
Q

Three bands of extensor hood

A

central band, two lateral bands

39
Q

Central band of extensor hood attaches to

A

middle phalanx

40
Q

Lateral bands of extensor hood attach to

A

distal phalanx

41
Q

Tear in the lateral bands of the extensor hood, seen as drop in distal phalanx, is called

A

mallet finger

42
Q

Solution to mallet finger

43
Q

Root (rami) lesions at C5-C6 can cause problem called

A

Erb-Duchenne Injury or Waiter’s Tip Hand

44
Q

Low Brachial plexus injury near C8-T1 can cause injury called

A

Klumpke’s Injury or Ulnar Claw Hand

45
Q

Erb-Duchenne injury afects external rotators how

A

loss of external rotators (teres minor, infraspinatus)

46
Q

Erb-Duchenne injury affects internal rotators how

A

unaffected, which turn hand into internal rotation

47
Q

Erb-Duchenne injury affects elbow extensors how

A

unaffected, which extends extends elbos, straightens arm

48
Q

Erb-Duchenne injury affects wrist flexors how

A

locks hand in flexion

49
Q

Klumpke’s paralysis (ulnar claw hand) affects MCP joints of digits 4,5 how

A

MCP joints hyperextended

50
Q

Klumpke’s paralysis (ulnar claw hand) affects DIP,PIP joints of digits 4,5 how

A

DIP,PIP joints flexed

51
Q

Klumpke’s paralysis (ulnar claw hand) affects digits 1,2 how

A

unaffected

52
Q

MCP joints are flexed by what mx

A

lumbricals

53
Q

Ulnar nerve innervated what mx between metacarpals

A

interossei

54
Q

In ulnar claw hand, what happens to interossei

A

denervates, causes metacarpal troughs

55
Q

Peripheral ner lesion of ulnar nerve causes

A

ulnar claw hand

56
Q

peripheral nerve lesion of radial nerve causes

A

wrist drop

57
Q

Peripheral nerve lesion of median nerve causes

A

Simeon Hand (Ape Hand)

58
Q

Simeon Hand (Ape Hand) causes

A

thenar atrophy

59
Q

Median nerve injury that can cause median nerve claw hand is called

A

Hand of Papal Benediction

60
Q

Hand of Papal Benediction affects digits 4,5 how

A

unaffected

61
Q

Hand of Papal Benediction affects digits 2,3 how

A

MCP hyperextended, DIP, PIP flexed

62
Q

Scar tissue of palmar aponeurosis that causes digits 4-5 to be pulled downward

A

Dupuytren’s contracture

OTD806 (43 decks)

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