Unit I Lec 15-16b Flashcards

(62 cards)

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
Palmar cutaneous branch of the median nerve supplies sensation to what
thenar eminence
26
Would thenar eminence lose senssation in carpal tunnel syndrome?
no
27
Band of tissue on dorsal side of hand connecting radius and ulna, continuous with palmar carpal ligament
extensor retinaculum
28
Purpose of extensor retinaculum
hold extensor tendons in place
29
Number of compartments in extensor retinaculum
6
30
Compartment 1 of extensor retinaculum contains
abductor pollicis longus, extensor pollicis brevis
31
Problem affecting thumb resulting from problems in compartment 1 of extensor retimaculum
De Quervain's tenosynovitis
32
Compartment 2 of extensor retinaculum contains
extensor carpi radialis longus and brevis
33
Compartment 3 of extensor retinaculum contains
extensor pollicis longus
34
Compartment 4 of extensor retinaculum contains
extensor digitorum, extensor indicis
35
Compartment 5 of extensor retinaculum contains
extensor digiti minimi
36
Compartment 6 of extensor retinaculum contains
extensor carpi ulnaris
37
Broad band of extensor digitorum tendon to dorsal aspect of digit, similar to aponeurosis, with lumbricle, palmer interosseus, dorsal interosseous mx inserting
extensor hood
38
Three bands of extensor hood
central band, two lateral bands
39
Central band of extensor hood attaches to
middle phalanx
40
Lateral bands of extensor hood attach to
distal phalanx
41
Tear in the lateral bands of the extensor hood, seen as drop in distal phalanx, is called
mallet finger
42
Solution to mallet finger
splinting
43
Root (rami) lesions at C5-C6 can cause problem called
Erb-Duchenne Injury or Waiter's Tip Hand
44
Low Brachial plexus injury near C8-T1 can cause injury called
Klumpke's Injury or Ulnar Claw Hand
45
Erb-Duchenne injury afects external rotators how
loss of external rotators (teres minor, infraspinatus)
46
Erb-Duchenne injury affects internal rotators how
unaffected, which turn hand into internal rotation
47
Erb-Duchenne injury affects elbow extensors how
unaffected, which extends extends elbos, straightens arm
48
Erb-Duchenne injury affects wrist flexors how
locks hand in flexion
49
Klumpke's paralysis (ulnar claw hand) affects MCP joints of digits 4,5 how
MCP joints hyperextended
50
Klumpke's paralysis (ulnar claw hand) affects DIP,PIP joints of digits 4,5 how
DIP,PIP joints flexed
51
Klumpke's paralysis (ulnar claw hand) affects digits 1,2 how
unaffected
52
MCP joints are flexed by what mx
lumbricals
53
Ulnar nerve innervated what mx between metacarpals
interossei
54
In ulnar claw hand, what happens to interossei
denervates, causes metacarpal troughs
55
Peripheral ner lesion of ulnar nerve causes
ulnar claw hand
56
peripheral nerve lesion of radial nerve causes
wrist drop
57
Peripheral nerve lesion of median nerve causes
Simeon Hand (Ape Hand)
58
Simeon Hand (Ape Hand) causes
thenar atrophy
59
Median nerve injury that can cause median nerve claw hand is called
Hand of Papal Benediction
60
Hand of Papal Benediction affects digits 4,5 how
unaffected
61
Hand of Papal Benediction affects digits 2,3 how
MCP hyperextended, DIP, PIP flexed
62
Scar tissue of palmar aponeurosis that causes digits 4-5 to be pulled downward
Dupuytren's contracture