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MSK anatomy > Upper limb 3 > Flashcards

Upper limb 3 Flashcards

1
Q

Muscles of front of forearm actions

A

flexors of wrist and digits

pronators of forearm

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2
Q

superficial group of front of forearm - 4 muscles

A

pronator teres
flexor capri radialis
palmaris longus
flexor carpi ulnaris

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3
Q

common flexor tendon

A

medial epicondyle of humerus

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4
Q

pronator teres action

A

flexes and pronates forearm

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5
Q

innervation of pronator teres

A

median nerve

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6
Q

median nerve roots

A

C6-7

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7
Q

adduction of wrist and abduction of wrist - superficial forearm muscles

A

add - flexor carpi ulnaris

abd - flexor carpi radialis

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8
Q

innervation of superficial muscles of forearm

A

3 - median nerve

flexor carpi ulnaris - ulnar nerve

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9
Q

brachioradialis compartment

A

extensor compartment

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10
Q

Brachioradialis joint

A

elbow

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11
Q

main action of brachioradialis

A

flexion of elbow in mid pronated position

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12
Q

innervation of brachioradialis

A

radial nerve

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13
Q

intermediate group of anterior forearm

A

flexor digitorum superficialis

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14
Q

FDS tendons

A

middle 4 fingers

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15
Q

FDS action

A

flex wrist, metacarpophalangeal and interphalangeal joints

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16
Q

FDS - distal IP joint?

A

NO

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17
Q

3 muscles of deep group of anterior forearm

A

FDP
Flexor pollicus longus
pronator quadratus

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18
Q

FDP action

A

flexes wrist and distal IP joint of digit 2-5

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19
Q

FDP dual nerve supply

A 
medial part (digit 4+5) - ulnar nerve
lateral part (digit 2+3) - median nerve
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20
Q

Nerve innervating flexor pollicus longus

A

medial nerve

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21
Q

Main nerve of anterior compartment of forearm

A

median nerve

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22
Q

Brachial artery and median nerve in cubital fossa

A

nerve medial to brachial artery

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23
Q

which muscle does median nerve not innervate in forearm?

A

flexor carpi ulnaris and medial half of FDP

24
Q

Does median nerve enter hand by passing below or above flexor retinaculum?

25
How does ulnar nerve enter forearm?
passing between heads of flexor carpi ulnaris
26
ulnar nerve and ulnar artery position
nerve medial to artery
27
2 terminal branches of brachial artery?
radial and ulnar
28
What is the carpal tunnel?
passageway deep to flexor retinaculum between scaphoid and trapezius on lateral side and psiform and hamate on medial side
29
Contents of carpal tunnel
4 tendons of FDS 4 tendons of FDP median nerve 1 tendon of FPL
30
carpal tunnel syndrome structure
median nerve
31
Muscle contributing to palmar aponeurosis
palmaris longus
32
Thenar muscles main responsibility
opposition of thumb
33
3 thenar muscle
abductor pollicus brevis flexor pollicus brevis opponens pollicus
34
Innervation of thenar muscles
median nerve
35
Hypothenar muscles
abductor digiti minimi flexor digiti minimi opponens digiti minimi
36
Innervation of hypothenar muscles
ulnar nerve
37
2 heads of adductor pollicus
oblique and transverse
38
Adductor pollicus innervation
ulnar nerve
39
Which flexor tendon do lumbricals originate?
flexor digitorum profundus
40
Lumbricals action
flex metacarpophalangeal joints | extend IP joint 2-5 digit
41
Where are interossei present?
between metacarpal bones
42
How many interossei?
4 dorsal and 3 palmar
43
DAB and PAD
dorsal interossei - abduction | palmar interossei - adduction
44
Innervation of interossei
ulnar nerve
45
superficial and deep palmar arch main contributor
superficial - ulnar artery | deep - radial artery
46
Does radial nerve supply any hand muscles?
no - skin on back of hand
47
Ulnar nerve - what it does NOT innervate in the hand
thenar muscles 1st and 2nd lumbrical median nerve
48
metacarpal bones
``` s - scaphoid L - lunate t - triquetrum p - pisiform t - trapezium t - trapezioid c - capitate h - hamate ```
49
wrist joint type
synovial condyloid/ellipsoid
50
Articular part of wrist
radius | lunate, scaphoid, triquetrum
51
movements of wrist
flexion and extension circumduction abduction and adduction
52
anterior compartment of forearm on wrist
flexion
53
extensor and flexor carpi ulnaris on wrist
adduction and flexion
54
abduction of wrist
flexor carpi radialis
55
What is the action of most of posterior compartment muscles of forearm on wrist joint?
extension

MSK anatomy (8 decks)

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