Muscles Practical 1 Flashcards
(205 cards)
1
Q
what is the origin of the trapezius?
A
External Occipital Protuberance
Superior nuchal line
Ligamentous nuchae
Spines of the thoracic vertebrae
2
Q
what is the insertion of the trapezius?
A
Clavicle
Acromion process scapula
Spine of scapula
3
Q
What is the action of the Trapezius?
A
stabilizes the scapula
Elevates the scapula
Middle and lower portion adducts scapula
4
Q
What is the innervation of the Trapezius?
A
spinal accessory nerve
C4 C5
5
Q
what is the origin of the Rhomboid Major?
A
spines of the upper thoracic
6
Q
what is the insertion of the Rhomboid Major?
A
vertebral border of the scapula
7
Q
what is the action of the Rhomboid Major?
A
stabilizes the scapula
Adducts scapula
Elevates scapula
8
Q
what is the nerve innervation of the Rhomboid Major?
A
Dorsal Scapular Nerve C5
9
Q
what is the origin of the Rhomboid Minor?
A
spines of the lower cervicals and T1
10
Q
what is the insertion of the Rhomboid Minor?
A
vertebral border of the scapula
11
Q
what is the action of the Rhomboid Minor?
A
stabilizes the scapula
Elevate scapula
Adducts scapula
12
Q
what is the nerve innervation of the Rhomboid minor?
A
Dorsal Scapular Nerve C5
13
Q
what is the origin of the Levator Scapula?
A
Transverse Process of the Upper cervicals
14
Q
What is the insertion of the Levator Scapula?
A
Superior Angle of the scapula
15
Q
what is the action of the levator scapula?
A
stabilizes the scapula
Adducts scapula
Elevate scapula
16
Q
what is the nerve innervation of the levator scapula?
A
Dorsal scapula nerve C5
17
Q
what are the three muscles innervated by the Dorsal scapular nerve?
A
Rhomboid Major,
Rhomboid Minor,
Levator Scapula
18
Q
What is the origin of the latissimus dorsi?
A
spines of the lower thoracic and lumbars
Thoracodorsal fascia
Crest ilium
Lower ribs
19
Q
what is the insertion of the latissimus dorsi?
A
intertubercular groove
20
Q
what is the action of the latissimus dorsi?
A
Forced expiration
Extend and adducts and medially rotates the humerus
21
Q
what is the nerve innervation of latissimus dorsi?
A
Thoracodorsal nerve
C6-8
22
Q
what is the origin of the Serratus Anterior?
A
Upper Ribs
23
Q
what is the insertion of the Serratus Anterior?
A
Vertebral border of the scapula
24
Q
what is the action of the Serratus anterior?
A
stabilizes the scapula
Adducts scapula
Forced inspiration only when humerus abducted
25
what is the nerve innervation of the Serratus anterior?
Long Thoracic Nerve C5-7
26
what are the 5 muscles that have the action of stabilizing the scapula?
```
Trapezius
Rhomboid Major
Rhomboid Minor
Levator Scapula
Serratus Anterior
```
27
what is the origin of the Deltoid?
Clavicle
Acromion process
Spine of scapula
28
what is the insertion of the Deltoid?
Deltoid Tuberosity of the humerus
29
what is the action of the deltoid?
Abducts arm middle
Flexes and medially rotates anterior
Extend and lateral rotates posterior
30
what is the nerve innervation of the deltoid?
Axillary Nerve C5-6
31
What is the origin of the Supraspinatous?
Supraspinous fossa of the scapula
32
insertion of the Supraspinatous?
Greater tuberosity of the Humerus
33
action of the Supraspinatous?
Helps stabilize the shoulder joint
Laterally rotates the humerus
Abduction of humerus
34
innervation of the supraspinatous?
Suprascapular Nerve C5-6
35
origin of the infraspinatous?
infraspinous fossa of the scapula
36
insertion of the infraspinatous?
greater tuberosity of the humerus
37
action of the infraspinatous?
helps stabilize shoulder joint
| Lateral rotate humerus
38
innervation of infraspinatous
suprascapular nerve C5-6
39
origin of the subscapularis
subscapular fossa of scapula
40
insertion of the subscapularis
lesser tuberosity of humerus
41
action of the subscapularis
stabilizes shoulder joint
| medially rotate humerus
42
innervation of the subscapularis
subscapular nerve C5-6
43
what are the two muscles innervated by the suprascapular nerve?
supraspinatous
| infraspinatous
44
what three muscles insert at the greater tuberosity?
supraspinatous
infraspinatous
teres minor
45
what 3 muscles stabilize the shoulder joint?
subscapuaris
teres major
teres minor
46
origin of the teres major
inferior angle of scapula
47
insertion of the teres major
medial lip of intertubercular groove
48
action of the teres major
stabilizes the shoulder joint
| adducts and medially rotates the humerus
49
origin of the teres minor
axillary border of scapula
50
insertion of the teres minor
greater tuberosity of the humerus
51
action of the teres minor
stabilizes the shoulder joint
| laterally rotates humerus
52
origin of the triceps brachii long head?
infraglenoid tubercle of the scapula
53
origin of the medial and lateral heads of triceps brachii?
shaft of the humerus
54
insertion of all the triceps brachii heads?
olecranon process of the ulna
55
action of the all three triceps brachii heads?
extension of the forearm
56
innervation of all three triceps brachii heads?
radial nerve
57
origin of the biceps brachii short head?
coracoid process of scapula
58
origin of the biceps brachii long head?
supraglenoid tubercle of the scapula
59
insertion of both heads of the biceps brachii?
shaft of the ulna
| tuberosity radius
60
action of the both heads of the biceps brachii?
flexion of forearm
supinator of forearm
short head adducts
long head abducts
61
innervation of both heads of the biceps brachii
Musculocutaneous nerve
62
origin of Coracobrachialis?
Coracoid process of scapula
63
insertion of Coracobrachialis?
shaft of the humerus
64
action of the Coracobrachialis?
flexion and weak adduction of arm
| stabilize shoulder joint
65
innervation of the Coracobrachialis?
Musculocutaneous nerve
66
origin of the Brachialis?
shaft of humerus
67
insertion of the brachialis?
Coronoid process of the ulna
68
action of the brachialis?
flexion of the forearm
69
innervation of brachialis
musculocutaneous nerve
70
what are the muscles innervated by the musculocutaneous
short and long heads of biceps brachii
coracobrachialis
brachialis
71
origin of the pronator teres
medial epicondyle of humerus
| coronoid process ulna
72
insertion of the pronator teres
pronator ridge of the radius
73
action of the pronator teres
pronates forearm at superior radio-ulnar joint
| assist flexion at forearm
74
innervation of the pronator teres
median nerve
75
origin of Flexor Carpi Radialis
medial epicondyle of the humerus
76
insertion of Flexor Carpi Radialis
2nd metacarpal with small slip to 3rd
77
action of Flexor Carpi Radialis
flexion of hand at wrist joint
| abduction of hand
78
innervation of Flexor Carpi Radialis
median nerve
79
origin of Palmaris Longus
medial epicondyle of humerus
80
insertion of palmaris longus
palmar aponeurosis
81
action of Palmaris Longus
helps flex the hand
| tightens fascia of the hand
82
innervation of the Palmaris Longus
median nerve
83
Origin of Flexor Digitorum superficialis
medial epicondyle of humerus
| shaft radius
84
insertion of the Flexor digitorum superficialis
Middle phalanges of digits 2-5
85
action of Flexor digitorum superficialis
helps flex the hand
| assist in flexion at the wrist joint
86
innervation of the Flexor digitorum superficialis
median nerve
87
origin of Flexor Carpi Ulnaris
Medial epicondyle of humerus
| oleocranon process ulna
88
insertion of Flexor Carpi Ulnaris
pisiform
hamate
5th metacarpal
89
action of the Flexor Carpi Ulnaris?
Flexion of hand at the wrist joint
| adduction of the hand
90
innervation of Flexor Carpi Ulnaris
Ulnar Nerve
91
what 5 muscles have the origin of the medial epicondyle of the humerus?
```
Pronator Teres
Flexor Carpi Radialis
Palmaris Longus
Flexor Digitorum Superficialis
Flexor Carpi Unaris
```
92
origin of Flexor Digitorum Profundus
shaft of the Ulna
93
insertion of the Flexor Digitorum profundus
Distal phalanges of digits 2-5
94
action of the Flexor digitorum profundus
helps flex the hand
| flexes at the DIP digits 2-5
95
innervation of the flexor digitorum profundus
ulnar and median nerve
96
origin of the flexor pollicus longus
shaft of the radius
97
insertion of the flexor pollicus longus
distal phalanx of digit 1
98
action of flexor pollicus longus
flexes the thumb at IP joint
99
innervation of the flexor pollicus longus
median nerve
100
origin of the pronator quadratus
shaft of the ulna
101
insertion of the pronator quadratus
shaft of the radius
102
action of the pronator quadratus
pronation of forearm at the inferior radial-ulnar joint
| stabilize the radioulnar joint
103
origin of the pectoralis major
clavicle
104
insertion of pectoralis major
greater tubercle of humerus
105
action of the pectoralis major
adduction and medial rotation of humerus
106
innervation of pectoralis major
medial and lateral pectoral nerve
107
origin of the pectoralis minor
upper ribs
108
insertion of the pectoralis minor
coracoid process of the scapula
109
action of the pectoralis minor
protraction/abduction of scapula
110
innervation of the pectoralis minor
medial pectoral nerve
111
origin of the subclavius
first rib
112
insertion of the subclavius
subclavian groove of the clavicle
113
action of the subclavius
moves clavicle medially
114
innervation of subclavius
nerve to the subclavius
115
origin of the brachioradialis
lateral supercondylar ridge of humerus
116
insertion of brachioradialis
styloid process of radius
117
action of brachioradialis
help flex forearm
118
innervation of the brachoradialis
radial nerve
119
origin of Extensor Carpi Radialis longus
lateral epicondyle of humerus
120
insertion of extensor carpi radialis longus
2nd metacarpal
121
action of the extensor carpi radialis longus
extend the hand
| abduct hand
122
innervation of the extensor carpi radialis longus
radial nerve
123
origin of extensor carpi radialis brevis
lateral epicondyle of humerus
124
insertion of extensor carpi radialis brevis
3rd metacarpal
125
action of extensor carpi radialis brevis
extend the hand
126
innervation of the extensor carpi radialis brevis
radial nerve
127
origin of extensor digitorum maximus
lateral epicondyle of humerus
128
insertion of extensor digitorum maximus
middle phalanx of digits 2-5
129
innervation of extensor digitorum maximus
radial nerve
130
origin of extensor digiti minimi
lateral epicondyle of the humerus
131
insertion of extensor digiti minimi
proximal phalanx of digit 5
132
action of extensor digiti minimi
extends digit 5
133
innervation of extensor digiti minimi
radial nerve
134
origin of extensor carpi ulnaris
lateral epicondyle of humerus
135
insertion of extensor carpi ulnaris
5th metacarpal
136
action of extensor carpi ulnaris
extends and adducts the hand
137
innervation of the extensor digiti minimi
radial nerve
138
origin of supinator
lateral epicondyle humerus
| supinator crest of ulna
139
insertion of supinator
shaft or radius
140
action of supinator
supinates forearm
141
innervation of supinator
radial nerve
142
origin of abductor pollicus longus
shaft of ulna and radius
143
insertion of abductor pollicus longus
1st metacarpal
144
action of abductor pollicus longus
abducts digit 1 at C-M joint
145
innervation of abductor pollicus longus
radial nerve
146
origin of extensor pollicus brevis
shaft of radius
147
insertion of extensor pollicus brevis
proximal phalanx of digit 1
148
action of extensor pollicus brevis
extends digit 1 at M-P joint
149
innervation of extensor pollicus brevis
radial nerve
150
origin of extensor pollicus longus
shaft of ulna
151
insertion of extensor pollicus longus
distal phalanx of digit 1
152
action of extensor pollicus longus
extends digit 1 at I-P joint
153
innervation of extensor pollicus longus
radial nerve
154
origin of extensor indicus
shaft of the ulna
155
insertion of the extensor indicus
proximal phalanx of digit 2
156
action of extensor indicus
extends digit 2 at M-P joint
157
innervation of extensor indicus
radial nerve
158
origin of aconeus
lateral epicondyle of humerus
159
insertion of aconeous
olecranon process of ulna
160
action of aconeous
extends forearm
161
innervation of aconeous
radial nerve
162
origin of abductor pollicus brevis
trapezium and scaphoid
163
insertion of abductor pollicus brevis
proximal phalanx of digit 1
164
action of abductor pollicus brevis
abducts digit 1 at M-P joint
165
innervation of abductor pollicus brevis
median nerve
166
origin of opponens pollicus
trapezium
167
insertion of opponens pollicus
1st metacarpal
168
action of opponens pollicus
medial rotates 1st metacarpal
169
innervation of opponens pollicus
median nerve
170
origin of flexor pollicus brevis
trapezium trapezoid capitate
171
insertion of flexor pollicus brevis
proximal phalanx of digit 1
172
action of flexor pollicus brevis
flexes digit 1 at M-P joint
173
innervation of flexor pollicus brevis
ulnar and media nerve
174
origin of adductor pollicus
trapezoid capitate 2-3 metacarpls
175
insertion of adductor pollicus
proximal phalanx of digit 1
176
action of adductor pollicus
adducts digit 1
177
innervation of adductor pollicus
ulnar nerve
178
origin of abductor digit quinti
pisiform
179
insertion of abductor digiti quinti
proximal phalanx digit 5
180
action of abductor digiti quinti
abducts digit 5
181
innervation of abductor digiti quinti
ulnar nerve
182
origin of flexor digiti quinti
hamate
183
insertion of flexor digiti quinti
proximal phalanx of digit 5
184
action of flexor digiti quinti
flexes digit 5 at M-P joint
185
innervation of flexor digiti quinti
ulnar nerve
186
origin of opponens digiti quinti
hamate
187
insertion of opponens digiti quinti
5th metacarpal
188
action of opponens digiti quinti
laterally rotates 5th metacarpal
189
innervation of opponens digiti quinti
ulnar nerve
190
origin of opponens digiti quinti
hamate
191
insertion of opponens digiti quinti
5th metacarpal
192
action of opponens digiti quinti
laterally rotates 5th metacarpal
193
innervation of opponens digiti quinti
ulnar nerve
194
origin of lumbricals
tendons of flexor digitorum profundus muscle
195
insertion of lumbricals
tendons of extensor digitorum muscle
196
action of lumbricals
flexes M-P joints
197
innervation of lumbricals
```
ulnar digits (3&4)
median (1&2)
```
198
origin of Dorsal Interossei
2nd- 4th metacarpal
199
insertion of dorsal interossei
proximal phalanx of digit 2 and 4
200
action of dorsal interossei
abducts digits 2-4
201
innervation of dorsal interossei
ulnar nerve
202
Innervation of the teres minor
Lower subscapular nerve
203
Innervation of the teres minor
Axillary nerve
204
innervation to pronator quadratus
median nerve
205
action extensor digitorum maximus
extend digit 2-5
extend hand at wrist joint
abduct digit 2.4.5
