Extremities Practical #1 Flashcards
(145 cards)
1
Q
A
flexor carpi radialis
2
Q
A
opponens digiti minimi
3
Q
A
brachial artery
4
Q
A
5
Q
A
6
Q
A
Flexor carpi radialis
origin- arises from the medial epicondyle of the humerus and the antebrachial fascia
insertion- inserts into the BASE of the 2nd metacarpal bone and sends a slip to the base of the 3rd metacarpal bone
action- flexes the hand at the wrist joing and aids in abduction
innervation- median nerve c6 and c7
* the radial artery pulse may be palpated just lateral to the tendon of this muscle
7
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A
8
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9
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10
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- Clavicle
- Suprascapular notch
- Superior angle
- Supraspinous fossa
- Spine
- Infraspinous fossa
- Medial epicondyle
- Trochdlea
- Olecranon fossa
10 deltoid tuberosity
- Head of humerus
11
Q
A
biceps brachii long head
12
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A
13
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basilic vein
14
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A
axillary artery
15
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A
16
Q
A
flexor carpi ulnaris
17
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A
18
Q
A
flexor digitorum profundus
19
Q
A
flexor digitorum superficialis
20
Q
A
median nerve
21
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A
axillary nerve from brachial plexus
22
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A
flexor digiti minimi brevis
23
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A
flexor digitorum superficialis
24
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A
digital artery and nerve
25
extensor digitorum
26
27
28
29
30
31
circumflex scapular artery
32
flexor carpi radialis
33
34
extensor indicis
35
36
brachial plexus lateral cord
37
38
flexor carpi ulnaris
39
40
41
superficial palmar arch
42
43
44
45
flexor carpi radialis
46
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flexor pollicis longus
48
1. Pronator teres
2. Pronator quadratus
origin-
pronator teres has 2 heads- 1 humeral heads arises above the medial epicondyle from the common flexor tendon, the intermusclular septum and antebrachial fascia. 2 ulnar head arises from the medial side of the coronoid process of the ulna.
quadratus arises from the medial aspect of the anterior surface of the distal 1/4 of the ulna
insertion-
pronator teres inserts midway along the lateral surface of the radius
quadratus inserts into the distal 4th of the lateral border and anterior surface of the shaft of the radius
Action-
pronator teres rotates the radius on the uln and helps flex the forearm at the elbow
quadratus pronates the hand- and is assited by the pronator teres when additional power is required
innervation-
both are innervated by the median nerve- pronator teres c6 c7 and quadratus c8 t1
\* pronator teres is quick and powerful pronation- quadratud is deep
49
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flexor digitorum superficialis
53
flexor digitorum profundus
54
flexor digitorum superficialis
55
pec major
56
extensor hood
57
palmar aponeurosis
58
59
anterior interosious artery
60
61
extensor pollicis brevis
62
axillary nerve
63
extensor retinaculum
64
musculocutaneous nerve
65
extensor carpi radialis brevis
66
67
pectoralis major muscle
68
biceps brachii
69
70
71
flexor carpi radialis
72
median nerve in forearm
73
extensor digiti minimi
74
1. Dorsal interosseous muscles
origin- the 4 dorsal interosseous muscles are bipennate. 2 heads from adjacent sides of the metacarpal bones
insertion- inserts into the base of the proximal phalanx and into the aponeurosis that forms the extensor expansion of digits 2-4
action- abducts the fingers from an imaginary line through the middle finger. Flex the fingers at the MCP joint and extends the 2 distal phalanges at the interphalangeal joints
innervation- deep palmar branch of the ulnar nerve c8 and t1
\* the 1st dorsal int is the largest- “pinch” muscle- also used with the adducgtor pollicis for precision grip- they are not associated with the thumb or little finger
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median nerve
77
pectoralis minor
78
anterior interosseous nerve and artery
79
1. Acromion
2. Greater tubercle
3. Lesser tubercle
4. Intertubercular sulcus
5. Condyles- medial and lateral
6. Capitulum
7. Coronoid fossa
8. Glenoid cavity of scapula
9. Inferior angle
10 subscapular fossa
11. Coracoid process
80
brachial artery
81
brachial plexus
82
medial cutaneous nerve
83
84
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interosseous membrane
86
bicipital aponeurosis
87
88
89
extensor pollicis longus
90
91
biceps brachii
92
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Palmaris longus
origin- arises from the medial epicondyle of the humerus by the common flexor tendon and the antebrachial fascia.
Insertion- inserts into the anterior aspect of the distal flexor retinaculum and into the palmar aponeurosis
action- flexes the hand at the wrist and tightens the palmar aponeurosis
innervation- median nerve c6 c7
\* absent in 10 percent of pop. Used for claws.
96
abductor pollicis brevis
97
median nerve medial root
98
1. Thoracacromial artery
2. Axillary artery
3. Posterior humeral circumflex artery
4. Brachial artery
5. Deep artery of the arm
6. Radial collateral artery
7. Radial recurrent artery
8. Radial artery
9. Ulnar artery
10. Common interosseous artery
11. Superior ulnar collateral artery
12. Circumflex scapular artery
13. Subscapular artery
99
extensor pollicis longus
100
brachialis
101
102
circumflex scapular artery
103
abductor pollicis longus
104
extensor digitorum tendons
105
axillary nerve in quadrangular space
106
107
brachioradialis
108
axillary nerve
109
musculocutaneous nerve
110
Flexor pollicis longus
origin- anterior aspect of the radius and adjacent to interosseous membrane
insertion- base of the distal phalanx of the thumb
action- flexion of the distal phalanx of the thumb. Can also flex the proximal phalanx because tendon croses the joint.
Innervation- anterior interosseous- branch of med.nerve c7, c8 and t1
\* the tendon of this muscle belly crosses the carpal tunnel on the radial side of the digital flexor tendons and passes to the distal phalanx of the thumb- it has its own synovial sheath
111
palmar interoseous muscle
112
lumbrical muscle
113
114
115
medial cutaneous nerve in the arm
116
117
cephalis vein
118
biceps brachii
119
1. Musculocutaneous nerve c5, c6, c7
2. Axillary nerve c5 c6
3. Radial nerve c5, c6, c7, c8 and t1
4. Median nerve c5, c6, c7, c8 and t1
5. Ulnar nerve c7 c8 and t1
6. Thoracodorsal- c6, c7, c8
7. Long thoracic nerve c5, c6, c7
8 dorsal scapular nerve c5
120
1. Palmar interosseous muscles- intrinsic muscle
origin- 3 palmar interossei arise from the palmar surfaces of the metacarpal bones of digits 2. 4. And 5
insertion- tendons of the palmar interossei insert into the extensor expansions of the digits and bases of the proximal phalanges of digits 2,4, and 5
actions- they adduct the fingers at the MC joint- moving them toward the mid axis. They also flex the proximal phalanx at the MC joint and aids in extension of the 2 distal phalanges at the interphalangeal joints.
Innervation- deep branch of the ulnar nerve c8 and t1
121
flexor digitorum superficialis
122
anterior interosseous nerve
123
median nerve recurrent
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Flexor digitorum profundus
origin- arises from the proximal 3/4 of the medial and anterior aspects of the ulna and from the interosseous membrane.
Insertion- four tendons attach to the bases of the distal phalanges of the medial 4 digits
action- flexion of the DIP joints. Also flexes at the PIP and the MC joints and flexes the wrist.
Innervation- proximal to the wrist the muscle is innervated by two nerves. The medial part is innervated by the ulnar nerve c8 and t1. The lateral part is innervated by the anterior interosseous nerve AIN- branch of the median nerve v8 and t1
\* the tendons of the fdp cross the carpal tunnel and then the palm of the hand. The 4 tensons pass through the slits of the superficialis tendons then attach to the distal phalanges.
127
brachial plexus posterior cord
128
palmaris longus
129
median nerve
130
131
beceps brachii tendon
132
oponens pollicis
133
134
135
136
median nerve
137
extensor carpi radialis longus
138
brachial plexus medial cord
139
extensor digiti minimi
140
brachioradialis
141
142
flexor pollicis brevis
143
flexor carpi ulnaris
144
145
common interosseous artery
