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IUSM Anatomy > Mimi's Forearm and Hand Muscles, Innervation, Function > Flashcards

Mimi's Forearm and Hand Muscles, Innervation, Function Flashcards

1
Q

pronator teres attachments

A

> medial epicondyle of humerus> ulnar head on medial coronoid process > both heads insert onto lateral radius

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2
Q

pronator teres nerve and artery

A

> Median n. (c6,7)> ant. ulnar recurrent a.

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3
Q

pronator teres action

A

pronate and weakly flex forarm@ elbow

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4
Q

flexor carpi radialis attachments

A

> medial epicondyle of humerus > inserts onto base of 2nd and 3rd metacarpals

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5
Q

flexor carpi radialis nerve and artery

A

> median n. (c6,7)> radial a.

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6
Q

flexor carpi radialis action

A

flexes and abducts the wrist, pronates hand, flexes forearm

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7
Q

palmaris longus attachment

A

> medial epicondyle of humerus> inserts on palmar aponeurosis

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8
Q

palmaris longus action

A

> weak forearm flexor> pronate and flex forearm

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9
Q

flexor carpi ulnaris attach

A

> medial epicondyle of humerus> olecranon> both heads insert onto the pisciform, hook of hamate, and 5th metacarpal

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10
Q

flexor carpi ulnaris nerve and artery

A

> ulnar n.> post. ulnar recurrent a.

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11
Q

flexor carpi ulnaris action

A

> flex wrist and forarm

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12
Q

flexor digitorum superficialis attach

A

> medial epicondyle> coronoid process of the ulna> oblique line of radius> both insert onto the middle phalanges 2-5

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13
Q

palmarus longus nerve and artery

A

> median n.> post. ulnar recurrent a.

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14
Q

flexor digitorum superficialis nerve and artery

A

> median n.> ulnar a./radial a.

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15
Q

flexor digitorum superficialis action

A

flex middle and proximal phalanges, aids in forearm flex

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16
Q

Flexor digitorum profundus attach

A

> medial/ant. ulna> Distal phalanges of D2-5

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17
Q

flexor digitorum profundus nerve and artery

A

> medial part is ulnar n.> lateral is interosseus of median n.> ulnar a.

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18
Q

flexor digitorum profundus action

A

flex terminal phalanges 2-5 and flex wrist

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19
Q

flexor pollicus longus attachments

A

> radius, coronoid process of ulna> palmar surface of distal thumb phalynx

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20
Q

flexor pollicus longus nerve and artery

A

> median n.> ulnar a.

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21
Q

pronator quadrus attachments

A

> distal ulna> lateral radius

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22
Q

pronator quadrus nerve and artery

A

> median n.> ulnar a.

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23
Q

path of ulnar nerve through forearm

A

> behind medial epicondyle of humerus> btn heads of flexor carpi ulnaris> joins ulnar a. in distal forarm> superfical sensory branch in wrist

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24
Q

path of median nerve through forearm

A

> leaves cubital fossa btn. two heads of pronator teres> courses teep to flexor digitorum superficialis> branches to anterior interosseus> branches to palmar cutaneous branch

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25
main branches of radial artery in forearm/hand
> radial recurrent a.> superficial palmar arch> deep arch> palmar carpal a> dorsal carpal a
26
main branches of ulnar artery in forearm
> ant. ulnar recurrent> post. ulnar recurrent> common interosseous to ant. post. interosseous> palmar carpal> dorsal carpal> superficial branch> deep palmar branch
27
extensor retinaculum
thickened antebrachial fascia on dorsum of wrist
28
what is in the carpal tunnel?
> 4 tendons of flexor digitorum superficialis> 4 tendons of flexor digitorum profundus> tendon of flexor pollicus longus> median n.
29
Abductor pollicus brevis attachment
> trapezium and scaphoid> proximal phalynx of thumb
30
abductor pollicus brevis nerve and artery
> median n. and deep ulnar n.> superficial radial a.
31
flexor pollicis brevis attachment
> carpal lig and trapezium> proximal phalynx of thumb
32
flexor pollicis brevis nerve and artery
> median n. > superficial radial a.
33
flexor pollicis brevis action
flexes proximal phalynx
34
opponens pollicis attachment
> carpal lig and trapezium> 1st MC
35
opponens pollicis nerve and artery
> median n.> radial a.
36
adductor pollicis attachment
> trapezium, trapezoid, capitate, base of MC2-3> MC 3> both heads attach distally on proximal phalynx of thumb
37
adductor pollicis nerve and artery
> ulnar n.> deep arch a.
38
adductor pollicis action
adducts thumb and aids in opposition
39
abductor digiti minimi attachment
> pisiform, tendon of FCU> medial proximal phalynx of D5
40
abductor digiti minimi nerve and artery
> ulnar n.> deep arch a. (branch of ulnar)
41
flexor digiti minimi brevis attachment
> carpal ligament, hamulus> proximal phalynx D5
42
flexor digiti minimi brevis nerve and artery
> ulnar n.> deep arch a. (branch of ulnar)
43
opponens digiti minimi attachment
> carpal ligament, hamulus> distal MC 5
44
opponens digiti minimi nerve and artery
> ulnar n.> deep arch a. (branch of ulnar)
45
Palmar interossei attachments
> palmar surfaces of MC 2,4,5> extensor expansions at base of proximal phalanges 2.4.5
46
palmar interossei nerves and arteries
> ulnar n.> digital arteries
47
palmar interossei action
adduct digits
48
lumbrical attachments
> tendons of flexor digitorum profundus> lateral side of proximal phalnx D2-5
49
lumbrical nerve and artery
> median (1-2) and ulnar (3-4)> digital arteries
50
lumbrical actions
> flex digits at MP joints> extend IP joints
51
brachioradialis actino
flex forarm
52
brachioradialis nerve/artery
> radial n.> radial recurrent a
53
brachioradialis attach
> lateral supracondylar ridge> lateral styloid process of radius
54
Extensor carpi radialis longus (ECRL) action
extend wrist, abduct hand
55
ECRL nerve/artery
> radial n.> radial a., radial recurrent a.
56
ECRL attach
> lateral supraconylar ridge> dorsal surface of 2nd MC
57
ECRB attach
> lateral epicondyle>dorsal part of 3rd MC
58
ECRB nerve/artery
> post. itnerosseus of radial> radial a., radial recurrent a.
59
ECRB action
extend wrist, abduct hand
60
Extensor digitorum attach
> lat. epicondyle> dorsum of proximal phalynx of D5
61
Extensor digitorum nerve/artery
> post. interosseus of radial n.> posterior interosseus of ulnar a.
62
Extensor digitorum action
extend wrist, digits
63
extensor digiti minimi attach
> common extensor tendon> dorsum of proximal phalynx of D5
64
Extensor Carpi Ulnaris (ECU) attach
> common extensor tendon> base 5th MC
65
ECU nerve/artery
> post. interosseus of radial n.> post. interosseus of ulnar a.
66
ECU action
extend wrist, adduct hand
67
anconeus attach
> lateral epicondyle> lateral olecranon and posterior ulna
68
anconeus nerve/artery
> radial n.> profunda brachii a.
69
anconeus action
assist triceps, extend forearm
70
supinator attachments
> lateral epicondyle, elbow joint, radius, ulna> upper lateral radius (both heads)
71
supinator nerve/artery
> deep radial n.> radial recurrent a.
72
abductor pollicus longus attach
> post. ulna, mid-post. radius> radial side of 1st MC
73
abductor pollicus longus nerve/artery
> post. interosseus of radial n.> posterior interosseus of ulnar n.
74
extensor pollicis brevis attach
> mid-post ulna> distal phalynx of thumb
75
extensor pollicus brevis artery/nerve
> post. interosseus radial n.>post. interosseus ulnar a.
76
extensor pollicis longus attach
> mid-post. ulna> distal phalynx of thumb
77
extensor pollicis longus nerve/artery
> post. interossesus radial n.> post interosseus ulnar a.
78
Hilton's Law
the nerves supplying the joint also supply the muscles moving the joint OR the skin covering the joint
79
blood supply of acromioclavicular joint
> suprascapular a.> thoracoacromial a.
80
innervation of acromioclavicular joint
> supraclavicular n.> lat. pectoral n.> axillary n.
81
blood supply of sternoclavicular joint
> internal thoracic a.> suprascapular a.
82
innervation of sternoclavicular joint
> supraclavicular n.
83
blood supply of glenohumeral joint
> ant./post. circumflex humeral aa
84
innervation of glenohumeral joint
> suprascapular n.> axillary n.> lat. pectoral n.
85
blood supply of elbow joint
> collateral branches of brachial a.> recurrent branches of both radial and ulnar aa.
86
innervation of elbow joint
> musculocutaneous n.> radial n.
87
innervation of distal radiaoulnar joint
ant/post interosseus nn.
88
blood to distal radioulnar joint
ant/post interosseus aa.

IUSM Anatomy (16 decks)

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