Muscles Flashcards
1
Q
Abductor digiti minimi origin
A
Pisiform bone and tendon of flexor carpi ulnaris
2
Q
Abductor digiti minimi insertion
A
Medial side of base of proximal phalanx of little finger
3
Q
Abductor digiti minimi innervation
A
Ulnar nerve (deep branch)
4
Q
Abductor digiti minimi blood supply
A
Deep palmar branch of ulnar artery
5
Q
Abductor digiti minimi actions
A
Abducts little finger
6
Q
Abductor pollicis brevis origin
A
Flexor retinaculum, tubercles of scaphoid and trapezium bones
7
Q
Abductor pollicis brevis insertion
A
Base of proximal phalanx of thumb
8
Q
Abductor pollicis brevis innervation
A
Median nerve (recurrent branch)
9
Q
Abductor pollicis brevis blood supply
A
Superficial palmar branch of radial artery
10
Q
Abductor pollicis brevis action
A
Abducts thumb
11
Q
Abductor pollicis longus origin
A
Posterior surface of ulna, radius, and interosseous membrane
12
Q
Abductor pollicis longus insertion
A
Base of 1st metacarpal
13
Q
Abductor pollicis longus innervation
A
Radial nerve (posterior interosseous)
14
Q
Abductor pollicis longus blood suppy
A
Posterior interosseous artery
15
Q
Abductor pollicis longus actions
A
Abducts and extends thumb at carpometacarpal joint
16
Q
Adductor pollicis origin oblique head
A
Bases of 2nd and 3rd metacarpals and capitate bone and adjacent bones
17
Q
Adductor pollicis insertion
A
Base of proximal phalanx of thumb
18
Q
Adductor pollicis innervation
A
Ulnar nerve (deep branch)
19
Q
Adductor pollicis blood supply
A
Deep palmar arch
20
Q
Adductor pollicis actions
A
Adducts thumb
21
Q
Adductor pollicis origin trasnverse head
A
Anterior surface of 3rd metacarpal
22
Q
Anconeus origin
A
Posterior surface of lateral epicondyle of humerus
23
Q
Anconeus insertion
A
Lateral surface of olecranon and posterior proximal ulna
24
Q
Anconeus innervation
A
Radial nerve
25
Anconeus blood supply
Deep brachial artery
26
Anconeus actinos
Assists triceps brachii in extending elbow, abducts ulna in pronation
27
Dorsal interosseous muscles origin
Sides of two adjacent metacarpal bones
28
Dorsal interosseous muscles insertion
Base of proximal phalangeal bones, extensor expansion of digits 2–4
29
Dorsal interosseous muscles innervation
Ulnar nerve (deep branch)
30
Dorsal interosseous muscles blood supply
Deep palmar arch
31
Dorsal interosseous muscles actions
Abduct digits; flex digits at metacarpophalangeal joint and extend interphalangeal joints
32
Extensor carpi radialis brevis origin
Lateral epicondyle of humerus
33
Extensor carpi radialis brevis insertion
Base of 3rd metacarpal and slip to 2nd metacarpal
34
Extensor carpi radialis brevis innervation
Radial nerve (deep branch)
35
Extensor carpi radialis brevis blood supply
Radial artery, radial recurrent artery
36
Extensor carpi radialis brevis actions
Extends and abducts hand at wrist
37
Extensor carpi radialis longus origin
Distal third of lateral supracondylar ridge of humerus
38
Extensor carpi radialis longus insertion
Base of 2nd metacarpal and slip to 3rd metacarpal
39
Extensor carpi radialis longus innervation
Radial nerve
40
Extensor carpi radialis longus blood supply
Radial artery, radial recurrent artery
41
Extensor carpi radialis longus actions
Extends and abducts hand at wrist
42
Extensor carpi ulnaris origin
Lateral epicondyle of humerus and posterior border of ulna
43
Extensor carpi ulnaris insertion
Base of 5th metacarpal
44
Extensor carpi ulnaris innervation
Radial nerve (posterior interosseous nerve)
45
Extensor carpi ulnaris blood supply
Posterior interosseous artery
46
Extensor carpi ulnaris actions
Extends and adducts hand at wrist
47
Extensor digiti minimi origin
Lateral epicondyle of humerus
48
Extensor digiti minimi insertion
Extensor expansion of 5th digit
49
Extensor digiti minimi innervation
Radial nerve (posterior interosseous nerve)
50
Extensor digiti minimi blood supply
Posterior interosseous artery
51
Extensor digiti minimi actions
Extends 5th digit
52
Extensor digitorum origin
Lateral epicondyle of humerus
53
Extensor digitorum insertion
Extensor expansions of medial four digits
54
Extensor digitorum innervation
Radial nerve (posterior interosseous nerve)
55
Extensor digitorum blood supply
Posterior interosseous artery
56
Extensor digitorum actions
Extends medial four digits, assists in wrist extension
57
Extensor indicis origin
Posterior surface of ulna and interosseous membrane
58
Extensor indicis insertion
Extensor expansion of 2nd digit
59
Extensor indicis innervation
Radial nerve (posterior interosseous nerve)
60
Extensor indicis blood supply
Posterior interosseous artery
61
Extensor indicis actions
Extends 2nd digit and helps extend hand at wrist
62
Extensor pollicis brevis origin
Posterior surface of radius and interosseous membrane
63
Extensor pollicis brevis insertion
Dorsal base of proximal phalanx of thumb
64
Extensor pollicis brevis innervation
Radial nerve (posterior interosseous nerve)
65
Extensor pollicis brevis blood supply
Posterior interosseous artery
66
Extensor pollicis brevis actions
Extends proximal phalanx of thumb at carpometacarpal joint
67
Extensor pollicis longus origin
Posterior surface of middle third of ulna, interosseous membrane
68
Extensor pollicis longus insertion
Dorsal base of distal phalanx of thumb
69
Extensor pollicis longus innervation
Radial nerve (posterior interosseous nerve)
70
Extensor pollicis longus blood supply
Posterior interosseous artery
71
Extensor pollicis longus actions
Extends distal phalanx of thumb at interphalangeal and metacarpophalangeal joints
72
Flexor carpi radialis origin
Medial epicondyle of humerus
73
Flexor carpi radialis insertion
Base of 2nd metacarpal
74
Flexor carpi radialis innervation
Median nerve
75
Flexor carpi radialis blood supply
Radial artery
76
Flexor carpi radialis actions
Flexes and abducts hand at wrist
77
Flexor carpi ulnaris superficial head origin
Medial epicondyle of humerus
78
Flexor carpi ulnaris deep head origin
Olecranon and posterior border of ulna
79
Flexor carpi ulnaris insertion
Pisiform bone, hook of hamate bone, base of 5th metacarpal
80
Flexor carpi ulnaris innervation
Ulnar nerve
81
Flexor carpi ulnaris blood supply
Posterior ulnar recurrent artery
82
Flexor carpi ulnaris actions
Flexes and adducts hand at wrist
83
Flexor digiti minimi brevis origin
Flexor retinaculum and hook of hamate bone
84
Flexor digiti minimi brevis insertion
Medial side of base of proximal phalanx of little finger
85
Flexor digiti minimi brevis innervation
Ulnar nerve (deep branch)
86
Flexor digiti minimi brevis blood supply
Deep palmar branch of ulnar artery
87
Flexor digiti minimi brevis actions
Flexes proximal phalanx of little finger
88
Flexor digitorum profundus origin
Medial and anterior surface of proximal 3/4 of ulna and interosseous membrane
89
Flexor digitorum profundus insertion
Palmar base of distal phalangeal bones of medial four digits
90
Flexor digitorum profundus innervation
Medial part: ulnar nerve
Lateral part: median nerve
91
Flexor digitorum profundus blood supply
Anterior interosseous artery, muscular branches of ulnar artery
92
Flexor digitorum profundus actions
Flexes distal phalangeal bones of medial four digits, assists with flexion of hand at wrist
93
Flexor digitorum superficialis humeroulnar head
Medial epicondyle of humerus, coronoid, process of ulna, ulnar collateral ligament
94
Flexor digitorum superficialis radial head
Superior half of anterior radius
95
Flexor digitorum superficialis insertion
Bodies of middle phalangeal bones of medial four digits
96
Flexor digitorum superficialis innervation
Median nerve
97
Flexor digitorum superficialis blood supply
Ulnar and radial arteries
98
Flexor digitorum superficialis actions
Flexes middle and proximal phalangeal bones of medial four digits, flexes hand at wrist
99
Flexor pollicis brevis origin
Flexor retinaculum and tubercle of trapezium bone
100
Flexor pollicis brevis insertion
Lateral side of base of proximal phalanx of thumb
101
Flexor pollicis brevis innervation
Median nerve (recurrent branch)
102
Flexor pollicis brevis blood supply
Superficial palmar branch of radial artery
103
Flexor pollicis brevis actions
Flexes proximal phalanx of thumb
104
Flexor pollicis longus origin
Anterior surface of radius and interosseous membrane
105
Flexor pollicis longus insertion
Palmar base of distal phalanx of thumb
106
Flexor pollicis longus innervation
Median nerve (anterior interosseous nerve)
107
Flexor pollicis longus blood supply
Anterior interosseous artery
108
Flexor pollicis longus actions
Flexes phalangeal bones of thumb
109
Palmaris longus origin
Medial epicondyle of humerus
110
Palmaris longus insertion
Distal half of flexor retinaculum and palmar aponeurosis
111
Palmaris longus innervation
Median nerve
112
Palmaris longus blood supply
Posterior ulnar recurrent artery
113
Palmaris longus actions
Flexes hand at wrist and tenses palmar aponeurosis
114
Pectoralis major origin
Sternal half of clavicle, sternum to 7th rib, cartilages of true ribs, aponeurosis of external abdominal oblique muscle
115
Pectoralis major insertion
Lateral lip of intertubercular sulcus of humerus
116
Pectoralis major innervation
Medial and lateral pectoral nerves
117
Pectoralis major blood supply
Pectoral branch of thoracoacromial artery, perforating branches of internal thoracic artery
118
Pectoralis major actions
Flexes, adducts, and medially rotates arm
119
Pectoralis minor origin
Outer surface of upper margin of ribs 3–5
120
Pectoralis minor insertion
Coracoid process of scapula
121
Pectoralis minor innervatino
Medial pectoral nerve
122
Pectoralis minor blood supply
Pectoral branch of thoracoacromial artery, and superior and lateral thoracic arteries
123
Pectoralis minor actions
Lowers lateral angle of scapula and protracts scapula
124
Pronator quadratus origin
Distal fourth of anterior ulna
125
Pronator quadratus insertion
Distal fourth of anterior radius
126
Pronator quadratus innervation
Median nerve (anterior interosseous nerve)
127
Pronator quadratus blood supply
Anterior interosseous artery
128
Pronator quadratus actions
Pronates forearm
129
Pronator teres origin
Two heads: medial epicondyle of humerus and coronoid process of ulna
130
Pronator teres insertion
Midway along lateral surface of radius
131
Pronator teres innervation
Median nerve
132
Pronator teres blood supply
Anterior ulnar recurrent artery
133
Pronator teres actions
Pronates forearm and weakly flexes elbow
134
Serratus anterior origin
Lateral surfaces of upper 8–9 ribs
135
Serratus anterior insertion
Costal surface of medial border of scapula
136
Serratus anterior innervation
Long thoracic nerve
137
Serratus anterior blood supply
Lateral thoracic artery
138
Serratus anterior actions
Protracts and rotates scapula and holds it against thoracic wall
139
Subclavius origin
Upper border of 1st rib and its cartilage
140
Subclavius insertion
Inferior surface of middle third of clavicle
141
Subclavius innveration
Nerve to subclavius
142
Subclavius blood supply
Clavicular branch of thoracoacromial artery
143
Subclavius actions
Anchors and depresses clavicle
144
Supinator origin
Lateral epicondyle of humerus, radial collateral and annular ligaments, supinator fossa, and crest of ulna
145
Supinator insertion
Lateral, posterior, and anterior surfaces of proximal third of radius
146
Supinator innervation
Radial nerve (deep branch)
147
Supinator blood supply
Radial recurrent artery, posterior interosseous arteries
148
Supinator actions
Supinates forearm
