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MGA > Arm, Elbow, Anterior Forearm, Posterior Forearm > Flashcards

Arm, Elbow, Anterior Forearm, Posterior Forearm Flashcards

1
Q

innervation of biceps brachii

A

musculocutaneous n

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2
Q

blood supply biceps brachii

A

brachial artery

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3
Q

origin bicep brachii

A

supraglenoid tubercle (long head), coracoid process (short head)

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4
Q

insertion bicep brachii

A

radial tuberosity, bicipital aponeurosis

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5
Q

action bicep brachii

A

flexes and supinates forearm, weak flexor of shoulder

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6
Q

origin coracobrachialis

A

coracoid process

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7
Q

insertion coracobrachialis

A

medial humerus midshaft

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8
Q

innervation coracobrachialis

A

musculocutaneous

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9
Q

blood supply coracobrachialis

A

brachial a

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10
Q

action coracobrachialis

A

strong arm adductor and flexor

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11
Q

origin brachialis

A

distal shaft of humerus

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12
Q

insertion brachialis

A

coronoid process and tuberosity of ulna

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13
Q

innervation brachialis

A

musculocutaneous

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14
Q

blood supply brachialis

A

brachial artery

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15
Q

action brachialis

A

flexes forearm

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16
Q

origin triceps brachii

A

long head: infraglenoid tubercle lateral head: posterior shaft of humerus middle head: distal 2/3 medial/posterior humerus

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17
Q

insertion triceps brachii

A

olecranon process of ulna

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18
Q

innervation triceps bracii

A

radial nerve

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19
Q

blood supply triceps brachii

A

profunda brachii artery

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20
Q

action of tricep brachii

A

extension of forearm, weak arm extensor

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21
Q

muscles making up the superficial layer of the anterior forearm: (4)

A

pronator teres, flexor carpi radialis, palmaris longus, flexor carpi ulnaris

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22
Q

origin pronator teres

A

medial epicondyle and proximal ulna

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23
Q

insertion pronator teres

A

mid shaft of the radius

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24
Q

innervation pronator teres

A

median nerve

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25
blood supply pronator teres
anterior ulnar recurrent artery
26
action pronator teres
pronates and flexes forearm
27
origin flexor carpi radialis
medial epicondyle
28
insertion flexor carpi radialis
base of 2nd and 3rd metacarpals
29
innervation flexor carpi radialis
median nerve
30
blood supply flexor carpi radialis
radial artery
31
action flexor carpi radialis
flexes and abducts wrist
32
origin palmaris longus
medial epicondyle
33
insertion palmaris longus
palmar aponeurosis
34
innervation palmaris longus
median nerve
35
blood supply palmaris longus
posterior ulnar recurrent artery
36
action palmaris longus
flexes hand at wrist, tenses palmar aponeurosis
37
origin flexor carpi ulnaris
medial epicondyle
38
insertion flexor carpi ulnaris
pisiform, hook of hamate, base of 5th metacarpal
39
innervation flexor carpi ulnaris
ulnar nerve
40
blood supply flexor carpi ulnaris
flexes and adducts wrist
41
intermediate layer of anterior forearm
flexor digitorum superficialis
42
origin flexor digitorum superficialis
medial epicondyle of humerus and shaft of radius
43
insertion of flexor digitorum superficialis
middle phalanges 2-5
44
innervation flexor digitorum superficialis
median nerve
45
blood supply flexor digitorum superficialis
ulnar artery
46
action flexor digitorum superficialis
flexes wrist, flexes digits 2-5
47
deep layer of anterior forearm (3)
flexor digitorum profundus, flexor pollicis longus, pronator quadratus
48
origin flexor digitorum profundus
ulna, interosseous membrane
49
insertion flexor digitorum profundus
distal phalanges 2-5
50
innervation flexor digitorum profundus
LATERAL 2 BELLIES anterior inerosseous nerve MEDIAL 2 BELLIES ulnar nerve
51
blood supply flexor digitorum profundus
anterior interosseous artery
52
action flexor digitorum profundus
flexes wrist and digits 2-5
53
origin flexor pollicis longus
radius, interosseous membrane
54
insertion flexor pollicis longus
distal phalanx digit 1
55
innervation flexor pollicis longus
anterior interosseous nerve
56
action flexor pollicis longus
flexes wrist and digit 1
57
origin pronator quadratus
distal ulna
58
insertion pronator quadratus
distal radius
59
innervation pronator quadratus
anterior interosseous nerve
60
blood supply pronator quadratus
anterior interosseous artery
61
action pronator quadratus
pronates forearm
62
superficial layer posterior forearm (6)
brachioradialis, extensor carpi radialis longus, extensor carpi radialis brevis, extensor digitorum, extensor digiti minimi, extensor carpi ulnaris
63
origin brachioradialis
lateral supracondylar ridge
64
insertion brachioradialis
styloid process of radius
65
innervation brachioradialis
radial nerve
66
blood supply brachioradialis
radial recurrent artery
67
action of brachioradialis
flexor of forearm in midprone, midsupine position
68
origin of extensor carpi radialis longus
lateral supracondylar ridge
69
insertion extensor carpi radialis longus
base of 2nd metacarpal
70
innervation extensor carpi radialis longus
radial nerve
71
blood supply extensor carpi radialis longus
radian artery
72
action extensor carpi radialis longus
extends and abducts wrist
73
origin extensor carpi radialis brevis
lateral epicondyle
74
insertion extensor carpi radialis brevis
base of 3rd metacarpal
75
innervation extensor carpi radialis brevis
deep branch of radial nerve
76
blood supply extensor carpi radialis brevis
radian artery
77
action extensor carpi radialis brevis
extends and abducts wrist
78
origin extensor digitorum
lateral epicondyle
79
insertion extensor digitorum
extensor hoods of digits 2-5
80
innervation extensor digitorum
deep branch radial nerve
81
blood supply extensor digitorum
posterior interosseous artery
82
action extensor digitorum
extends digits 2-5, extends wrist
83
origin extensor digiti minimi
lateral epicondyle
84
insertion extensor digit minimi
extensor hood of digit 5
85
innervation extensor digiti minimi
deep branch radial nerve
86
blood supply extensor digiti minimi
posterior interosseous artery
87
action extensor digiti minimi
extend digit 5
88
deep posterior forearm (6):
anconeus, supinator, abductor pollicis longus, extensor pollicis brevis, extensor pollicis longus, extensor indicies
89
origin of anconeus
lateral epicondyle
90
insertion anconeus
olecranon and proximal ulna
91
innervation anconeus
radial nerve
92
blood supply anconeus
profunda brachii
93
action anconeus
abducts ulna during pronation, accessory to elbow extension
94
origin supinator
ulna distal to radial notch, and lateral epicondyle
95
insertion supinator
proximal radius
96
innervation supinator
deep branch radial nerve
97
blood supply supinator
radial recurrent artery
98
action supinator
supinates forearm
99
origin abductor pollicis longus
ulna, radius, interosseous membrane
100
insertion abductor pollicis longus
base of metacarpal 1
101
innervation abductor pollicis longus
posterior interosseous nerve
102
blood supply abductor pollicis longus
posterior interosseous artery
103
action abductor pollicis longus
abducts thumb
104
origin extensor pollicis brevis
radius, interosseous membrane
105
insertion extensor pollicis brevis
proximal phalanx of pollex
106
innervation extensor pollicis brevis
posterior interosseous nerve
107
blood supply extensor pollicis brevis
posterior interosseous artery
108
action extensor pollicis brevis
extend thumb
109
origin extensor pollicis longus
ulna and interosseous membrane
110
insertion extensor pollicis longus
distal phalanx of pollex
111
innervation extensor pollicis longus
posterior interosseous nerve
112
blood supply extensor pollicis longus
posterior interosseous artery
113
action of extensor pollicis longus
extends index finger (digit 2)
114
what does the anatomical snuffbox consist of?
abductor pollicis longus, extensor pollicis brevis, extensor pollicis longus and radial artery
115
what travels through the carpal tunnel?
the 4 tendons from flexor digitorum superficialis, flexor digitorum profundus, the median nerve, and the flexor pollicis longus also included: the ulnar and radial bursa
116
what is in the ulnar bursa?
common flexor sheath of superficialis and profundus flexor tendons
117
what is in the radial bursa?
tendinous sheath for flexor pollicis longus
118
deep posterior compartment
119
what is tennis elbow?
lateral epicondylitis, due to the superficial layer of posterior compartment muscles overuse (common extensor origin)
120
what is golfer's elbow?
medial epicondylitis, due to inflammation of common flexor origins (pronator teres, flexor carpi radialis, palmaris longus, flexor carpi ulnaris)
121
what are the bones in the hand?
"some lovers try positions that they cannot handle" scaphoid, lunate, triquetrum, pisiform, trapezium, trapezoid, capitate, hamate
122
MCP joint
metacarpophalangeal joint
123
PIP joint
proximal interphalangeal joint
124
DIP
distal interphalangeal joint
125
CM joint
carpometacarpal joint
126
wrist joint
radio-carpal joint
127
what is the most commonly fractured carpal bone?
scaphoid, fall on the palm with hand abducted could lead to avascular necrosis due to the poor blood supply palpate in the anatomical snuffbox with hand adducted
128
what is the shape of the carpometacarpal joint for the thumb and why is that important
saddle shaped, allows for flexion, extension, abduction, adduction, rotation, circumduction of the thumb
129
movement of the metacarpophalangeal joints
flexion, extension, abduction, adduction, circumduction NO rotation
130
movement of the interphalangeal joints
hinge only, flexion and extension
131
what is the carpal tunnel?
the flexor retinaculum that is attached to the hook of hamate, pisiform, trapezium and scaphoid has the 4 tendons of the flexor digitorum superficialis and profundus, the median nerve, and the flexor pollicus longus tendon \*\*THE FLEXOR CARPI RADIALIS TENDON DOES NOT PASS UNDER THIS TUNNEL, IT RUNS WITHIN THE FLEXOR RETINACULUM\*\*
132
what is carpal tunnel syndrome?
pressure on median nerve due to overuse and swelling of tendons and tendon sheaths, to treat, cut the flexor retinaculum

MGA (27 decks)

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