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Muscle OIA Flashcards

1
Q

What is the origin of the masseter?

A

Zygomatic arch

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2
Q

What is the insertion of the masster?

A

Mandibular angle and mandibular ramus

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3
Q

What is the action of the masseter?

A

Elevates mandible

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4
Q

What is the origin of the temporalis?

A

Temporal fossa

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5
Q

What is the insertion of the temporalis?

A

Coronoid process of the mandible

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6
Q

What is the action of the temporalis?

A

Elevates mandible

Retracts mandible

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7
Q

What is the origin of the sternocleidomastoid?

A

Manubrium and medial clavicle

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8
Q

What is the insertion of the sternocleidomastoid?

A

Mastoid process

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9
Q

What is the action of the sternocleidomastoid?

A

Flexes head

Rotates head

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10
Q

What is the origin of the scalenes?

A

Transverse processes of the cervical vertebrae

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11
Q

What is the insertion of the scalenes?

A

Anterior surface of ribs 1 + 2

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12
Q

What is the action of the scalenes?

A

Elevates ribs 1+2
Flexes head
Rotates neck

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13
Q

What is the origin of pectoralis major?

A

Sternal end of the clavicle
Clavicle
Ribs 1-6

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14
Q

What is the insertion of pectoralis major?

A

Greater tubercle

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15
Q

What is the action of pectoralis major?

A

Flexes arm at shoulder
Rotates arm medially
Adducts arm

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16
Q

What is the origin of pectoralis minor?

A

Ribs 3-5

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17
Q

What is the insertion of pectoralis minor?

A

Coracoid process of scapula

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18
Q

What is the action of pectoralis minor?

A

Depresses scapula

Rotates scapula downwards

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19
Q

What is the origin of serratus anterior?

A

Ribs 1-8

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20
Q

What is the insertion of serratus anterior?

A

Vertebral border of the scapula

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21
Q

What is the actions of serratus anterior?

A

Rotates scapula upwards

Protracts scapula

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22
Q

What is the origin of the external intercostals?

A

Inferior border of ribs

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23
Q

What is the insertion of the external intercostals?

A

Superior border of ribs

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24
Q

What is the action of the external intercostals?

A

Elevates rib cage

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25
What is the origin of the internal intercostals?
Superior border of ribs
26
What is the insertion of the internal intercostals?
Inferior border of ribs
27
What is the action of the internal intercostals?
Depresses rib cage
28
What is the origin of external oblique?
Ribs 5-12
29
What is the insertion of external oblique?
Linea alba Pubic crest Pubic tubercle Iliac crest
30
What is the action of the external obliques?
Flexes and rotates vertebral column | Compresses abdomen
31
What is the origin of the internal obliques?
Lumbar fascia Iliac crest Inguinal ligament
32
What is the insertion of the internal obliques?
Linea alba Pubic crest Ribs 5-12
33
What is the action of the internal obliques?
Flexes and rotates vertebral column | Compresses abdomen
34
What is the origin of rectus abdominis?
Pubic crest | Pubic symphysis
35
What is the insertion of rectus abdominis?
Xiphoid process | Ribs 5-7
36
What is the action of rectus abdominis?
Flexes and rotates vertebral column | Compresses abdomen
37
What is the origin of iliacus?
Iliac fossa | Ala of sacrum
38
What is the insertion of iliacus?
Lesser trochanter of the femur
39
What is the action of iliacus?
Flexes thigh at hip | Flexes trunk
40
What is the origin of psoas major?
Transverse processes of T12 - L5
41
What is the insertion of psoas major?
Lesser trochanter of the femur
42
What is the action of psoas major?
Flexes thigh at hip | Flexes trunk laterally
43
What is the origin of the deltoid?
Lateral 1/3 of clavicle Spine of scapula Acromion process of scapula
44
What is the insertion of the deltoid?
Deltoid tuberosity
45
What is the action of the deltoid?
``` Abducts arm Flexes arm at shoulder Extends arm at shoulder Rotates arm medially Rotates arm laterally ```
46
What is the origin of the long head of biceps brachii?
Supraglenoid tubercle
47
What is the origin of the short head of biceps brachii?
Coracoid process
48
What is the insertion of biceps brachii?
Radial tuberosity
49
What is the action of biceps brachii?
Flexes forearm at elbow | Supinates forearm
50
What is the origin of brachialis?
Anterior humerus
51
What is the insertion of brachialis?
Coronoid process of ulna
52
What is the action of brachialis?
Flexes forearm at elbow
53
What is the origin of coracobrachialis?
Coracoid process
54
What is the insertion of coracobrachialis?
Medial surface of shaft of humerus
55
What is the action of coracobrachialis?
Flexes arm at shoulder | Adducts arm
56
What is the origin of brachioradialis?
Lateral supracondylar ridge of humerus
57
What is the insertion of brachioradialis?
Styloid process of radius
58
What is the action of brachioradialis?
Flexes forearm at elbow | Stabilizes elbow during flexion/extension
59
What is the origin of extensor carpi radialis longus?
Lateral supracondylar ridge of humerus
60
What is the insertion of extensor carpi radialis longus?
2nd metacarpal
61
What is the action of extensor carpi radialis longus?
Extends hand at wrist | Abducts hand
62
What is the origin of extensor carpi radialis brevis?
Lateral epicondyle of humerus
63
What is the insertion of extensor carpi radialis brevis?
3rd metacarpal
64
What is the action of extensor carpi radialis brevis?
Extends hand at wrist | Abducts hand
65
What is the origin of extensor digitorum?
Lateral epicondyle of humerus
66
What is the insertion of extensor digitorum?
Distal phalanges of digits 2-5
67
What is the action of extensor digitorum?
Extends distal interphalangeal joints | Extends hand at wrist
68
What is the origin of extensor carpi ulnaris?
Lateral epicondyle of humerus | Posterior ulna
69
What is the insertion of extensor carpi ulnaris?
5th metacarpal
70
What is the action of extensor carpi ulnaris?
Extends hand at wrist | Adducts hand
71
What is the origin of the supinator?
Lateral epicondyle of humerus | Proximal ulna
72
What is the insertion of the supinator?
Proximal end of radius
73
What is the action of the supinator?
Supinates forearm, obviously
74
What is the origin of abductor pollicis longus?
Posterior radius Posterior ulna Interosseous membrane
75
What is the insertion of abductor pollicis longus?
Trapezium | 1st metacarpal
76
What is the action of abductor pollicis longus?
Abducts pollex
77
What is the origin of extensor pollicis brevis?
Posterior radius Posterior ulna Interosseous membrane
78
What is the insertion of extensor pollicis brevis?
Proximal phalanx of pollex
79
What is the action of extensor pollicis brevis?
Extends 1st metacarpal-phalangeal joint
80
What is the origin of extensor pollicis longus?
Posterior radius Posterior ulna Interosseous membrane
81
What is the insertion of extensor pollicis longus?
Distal phalanx of pollex
82
What is the action of extensor pollicis longus?
Extends 1st interphalangeal joint
83
What is the origin of extensor indicis?
Posterior ulna | Interosseous membrane
84
What is the insertion of extensor indicis?
Distal phalanx of 2nd digit
85
What is the action of extensor indicis?
Extends 2nd distal interphalangeal joint
86
What is the origin of extensor digiti minimi?
Lateral epicondyle of humerus
87
What is the insertion of extensor digiti minimi?
Distal phalanx of 5th digit
88
What is the action of extensor digiti minimi?
Extends 5th distal interphalangeal joint
89
What is the origin of sartorius?
Anterior superior iliac spine
90
What is the insertion of sartorius?
Medial surface of proximal tibia
91
What is the action of sartorius?
Flexes thigh at hip Rotates thigh laterally Abducts thigh Flexes leg at knee
92
What is the origin of tensor fascia latae?
Anterior superior iliac spine | Iliac crest
93
What is the insertion of tensor fascia latae?
Iliotibial tract
94
What is the action of tensor fascia latae?
Flexes thigh at hip Abducts thigh Rotates thigh medially
95
What is the origin of iliopsoas?
Iliac fossa Ala of sacrum Transverse processes of T12 - L5
96
What is the insertion of iliopsoas?
Lesser trochanter
97
What is the action of iliopsoas?
Flexes thigh at hip | Flexes vertebral column
98
What is the origin of pectineus?
Superior famous of pubis
99
What is the insertion of pectineus?
Linea aspera
100
What is the action of pectineus?
Adducts thigh Flexes thigh at hip Rotates thigh medially
101
What is the origin of rectus femoris?
Anterior inferior iliac spine
102
What is the insertion of rectus femoris?
Patella | Tibial tuberosity
103
What is the action of rectus femoris?
Extends leg at knee | Flexes thigh at hip
104
What is the origin of vastus lateralis?
Greater trochanter Intertrochanteric line Linea aspera
105
What is the insertion of vastus lateralis?
Patella | Tibial tuberosity
106
What is the action of vastus lateralis?
Extends leg at knee | Stabilizes knee
107
What is the origin of vastus medialis?
Linea aspera | Intertrochanteric line
108
What is the insertion of vastus medialis?
Patella | Tibial tuberosity
109
What is the action of vastus medialis?
Extends leg at knee | Stabilizes patella
110
What is the origin of vastus intermedius?
Proximal shaft of femur
111
What is the insertion of vastus intermedius?
Patella | Tibial tuberosity
112
What is the action of vastus intermedius?
Extends leg at knee
113
What is the origin of gracilis?
Inferior ramus and body of pubis
114
What is the insertion of gracilis?
Medial surface of tibia
115
What is the action of gracilis?
Adducts thigh Flexes leg at knee Rotates leg medially
116
What is the origin of adductor longus?
Pubis (near pubic symphysis)
117
What is the insertion of adductor longus?
Linea aspera of femur
118
What is the action of adductor longus?
Adducts thigh Flexes thigh at hip Rotates thigh medially
119
What is the origin of adductor brevis?
Inferior ramus and body of pubis
120
What is the insertion of adductor brevis?
Linea aspera | Adductor tubercle
121
What is the action of adductor brevis?
Adducts thigh | Rotates thigh medially
122
What is the origin of adductor magnus?
Inferior ramus of the pubis Ischial ramus Ischial tuberosity
123
What is the insertion of adductor magnus?
Linea aspera | Adductor tubercle
124
What is the action of adductor magnus?
Adducts thigh Rotates thigh medially Flexes thigh at hip
125
What is the origin of tibialis anterior?
Lateral condyle of tibia | Interosseous membrane
126
What is the insertion of tibialis anterior?
Medial cuneiform | 1st metatarsal
127
What is the action of tibialis anterior?
Dorsiflexes foot at ankle | Inverts foot
128
What is the origin of extensor hallucis longus?
Proximal shaft of fibula | Interosseous membrane
129
What is the insertion of extensor hallucis longus?
Distal phalanx of the big toe
130
What is the action of extensor hallucis longus?
Dorsiflexes foot at ankle | Extends big toe
131
What is the origin of extensor digitorum longus?
Lateral condyle of tibia Proximal fibula Interosseous membrane
132
What is the insertion of extensor digitorum longus?
Middle and distal phalanges of 2nd - 5th toes
133
What is the action of extensor digitorum longus?
Extends 2nd-5th distal interphalangeal joints
134
What is the origin of fibularis tertius?
Distal shaft of fibula | Interosseous membrane
135
What is the insertion of fibularis tertius?
5th metatarsal
136
What is the action of fibularis tertius?
Dorsiflexes foot at ankle | Everts foot
137
What is the origin of fibularis longus?
Head of fibula
138
What is the insertion of fibularis longus?
Medial cuneiform | 1st metatarsal
139
What is the action of fibularis longus?
Plantar flexes foot at ankle | Everts foot
140
What is the origin of fibularis brevis?
Distal shaft of fibula
141
What is the insertion of fibularis brevis?
5th metatarsal
142
What is the action of fibularis brevis?
Plantar flexes foot at ankle | Everts foot
143
What is the origin of trapezius?
Occipital bone | Spinous processes of C7 - T12
144
What is the insertion of trapezius?
Lateral 1/3 of clavicle Spine of scapula Acromion process
145
What is the action of trapezius?
Elevates scapula Depresses scapula Rotates scapula Adducts scapula
146
What is the origin of latissimus dorsi?
Spinous processes of T7 - T12 Ribs 9 - 12 Iliac crest
147
What is the insertion of latissimus dorsi?
Intertubercular groove (sulcus)
148
What is the action of latissimus dorsi?
Extends arm at shoulder Adducts arm Rotates arm medially
149
What is the origin of levator scapulae?
Transverse processes of C1 - C4
150
What is the insertion of levator scapulae?
Vertebral border of the scapula
151
What is the action of levator scapulae?
Elevates scapula | Downwardly rotates scapula
152
What is the origin of rhomboid major?
Spinous processes of T2 - T5
153
What is the insertion of rhomboid major?
Vertebral border of the scapula
154
What is the action of rhomboid major?
Adducts scapula | Downwardly rotates scapula
155
What is the origin of rhomboid minor?
Spinous processes of C7 - T1
156
What is the insertion of rhomboid minor?
Vertebral border of the scapula
157
What is the action of rhomboid minor?
Adducts scapula | Downwardly rotates scapula
158
What is the origin of supraspinatus?
Supraspinous fossa
159
What is the insertion of supraspinatus?
Greater tubercle
160
What is the action of supraspinatus?
Abducts arm
161
What is the origin of infraspinatus?
Infraspinous fossa
162
What is the insertion of infraspinatus?
Greater tubercle
163
What is the action of infraspinatus?
Rotates arm laterally
164
What is the origin of teres major?
Inferior angle of scapula
165
What is the insertion of teres major?
Lesser tubercle
166
What is the action of teres major?
Adducts arm Extends arm at shoulder Rotates arm medially
167
What is the origin of teres minor?
Lateral border of scapula
168
What is the insertion of teres minor?
Greater tubercle
169
What is the action of teres minor?
Rotates arm laterally
170
What is the origin of subscapularis?
Subscapular fossa
171
What is the insertion of subscapularis?
Lesser tubercle
172
What is the action of subscapularis?
Rotates arm medially
173
What is the origin of splenius capitis?
Spinous processes of C6 - T7
174
What is the insertion of splenius capitis?
Mastoid process | Occipital bone
175
What is the action of splenius capitis?
Extends vertebral column
176
What is the origin of semispinalis capitis?
Transverse process of C7 - T12
177
What is the insertion of semispinalis capitis?
Occipital bone
178
What is the action of semispinalis capitis?
Extends vertebral column
179
What is the origin of iliocostalis?
Iliac crest | Ribs 3-12
180
What is the insertion of iliocostalis?
Inferior border of ribs | Transverse processes of C4 - C6
181
What is the action of iliocostalis?
Extends vertebral column
182
What is the origin of longissimus?
Transverse processes of C4 - L5
183
What is the insertion of longissimus?
Mastoid process
184
What is the action of longissimus?
Extends vertebral column
185
What is the origin of spinalis?
Spinous processes of T7 - L3
186
What is the insertion of spinalis?
Spinous processes of C4 - T6
187
What is the action of spinalis?
Extends vertebral column
188
What is the origin of the long head of triceps brachii?
Infraglenoid tubercle
189
What is the insertion of the long head of triceps brachii?
Olecranon process of ulna
190
What is the action of the long head of triceps brachii?
Extends forearm at elbow
191
What is the origin of the lateral head of triceps brachii?
Posterior surface of shaft of humerus
192
What is the insertion of the lateral head of triceps brachii?
Olecranon process of ulna
193
What is the action of the lateral head of triceps brachii?
Extends the forearm at elbow
194
What is the origin of the medial head of triceps brachii?
Posterior surface of shaft of humerus
195
What is the insertion of the medial head of triceps brachii?
Olecranon process of ulna
196
What is the action of the medial head of triceps brachii?
Extends forearm at elbow
197
What is the origin of flexor carpi radialis?
Medial epicondyle of humerus
198
What is the insertion of flexor carpi radialis?
2nd and 3rd metacarpals
199
What is the action of flexor carpi ulnaris?
Flexes hand at wrist | Abducts hand
200
What is the origin of palmaris longus?
Medial epicondyle of humerus
201
What is the insertion of palmaris longus?
Palmar aponeurosis
202
What is the action of palmaris longus?
Flexes hand at wrist
203
What is the origin of flexor carpi ulnaris?
Medial epicondyle of humerus Olecranon process of ulna Shaft of ulna
204
What is the insertion of flexor carpi ulnaris?
Pisiform Hamate 5th metacarpal
205
What is the action of flexor carpi ulnaris?
Flexes hand at wrist | Adducts hand
206
What is the origin of flexor digitorum superficialis?
Medial epicondyle of humerus Coronoid process of ulna Shaft of radius
207
What is the insertion of flexor digitorum superficialis?
Middle phalanges of 2nd - 5th digits
208
What is the action of flexor digitorum superficialis?
Flexes hand at wrist | Flexes proximal interphalangeal joints
209
What is the origin of flexor digitorum profundus?
Ulna | Interosseous membrane
210
What is the insertion of flexor digitorum profundus?
Distal phalanges of 2nd - 5th digits
211
What is the action of flexor digitorum profundus?
Flexes distal interphalangeal joints
212
What is the origin of flexor pollicis longus?
Anterior radius | Interosseous membrane
213
What is the insertion of flexor pollicis longus?
Distal phalanx of pollex
214
What is the action of flexor pollicis longus?
Flexes 1st interphalangeal joint
215
What is the origin of pronator quadratus?
Distal and anterior ulna
216
What is the insertion of pronator quadratus?
Distal and anterior radius
217
What is the action of pronator quadratus?
Pronates forearm
218
What is the origin of pronator teres?
Medial epicondyle of humerus
219
What is the insertion of pronator teres?
Lateral radius
220
What is the action of pronator teres?
Pronates forearm
221
What is the origin of abductor pollicis brevis?
Scaphoid Trapezium Flexor retinaculum
222
What is the insertion of abductor pollicis brevis?
Proximal phalanx of thumb
223
What is the action of abductor pollicis brevis?
Abducts thumb
224
What is the origin of opponens pollicis?
Trapezium | Flexor retinaculum
225
What is the insertion of opponens pollicis?
1st metacarpal
226
What is the action of opponens pollicis?
Opposition
227
What is the origin of flexor pollicis brevis?
Trapezium | Flexor retinaculum
228
What is the insertion of flexor pollicis brevis?
Proximal phalanx of pollex (thumb)
229
What is the action of flexor pollicis brevis?
Flexes thumb
230
What is the origin of adductor pollicis?
Capitate | Bases of 2nd - 4th metacarpals
231
What is the insertion of adductor pollicis?
Proximal phalanx of pollex (thumb)
232
What is the action of adductor pollicis?
Adducts thumb | Opposition
233
What is the origin of gluteus maximus?
Posterior surface of ala of ilium Sacrum Coccyx
234
What is the insertion of gluteus maximus?
Iliotibial tract | Gluteal tuberosity
235
What is the action of gluteus maximus?
Extends thigh at hip Rotates thigh laterally Abducts thigh
236
What is the origin of gluteus medius?
Lateral surface of ilium
237
What is the insertion of gluteus medius?
Greater trochanter
238
What is the action of gluteus medius?
Abducts thigh | Rotates thigh medially
239
What is the origin of gluteus minimis?
Lateral surface of ilium
240
What is the insertion of gluteus minimis?
Greater trochanter
241
What is the action of gluteus minimis?
Abducts thigh | Rotates thigh medially
242
What is the origin of piriformis?
Lateral surface of sacrum
243
What is the insertion of piriformis?
Greater trochanter
244
What is the action of piriformis?
Rotates thigh laterally when hip is extended
245
What is the origin of quadratus femoris?
Ischial tuberosity
246
What is the insertion of quadratus femoris?
Intertrochanteric crest
247
What is the action of quadratus femoris?
Rotates thigh laterally
248
What is the origin of the long head of biceps femoris?
Ischial tuberosity | Linea aspera
249
What is the insertion of the long head of biceps femoris?
Head of fibula | Lateral condyle of tibia
250
What is the action of the long head of biceps femoris?
Extends thigh at hip Flexes leg at knee Rotates leg laterally
251
What is the origin of the short head of biceps femoris?
Linea aspera
252
What is the insertion of the short head of biceps femoris?
Head of fibula | Lateral condyle of tibia
253
What is the action of the short head of biceps femoris?
Flexes leg at knee | Rotates leg laterally
254
What is the origin of semitendinosus?
Ischial tuberosity
255
What is the insertion of semitendinosus?
Medial surface of proximal shaft of tibia
256
What is the action of semitendinosus?
Extends thigh at hip Flexes leg at knee Rotates leg medially
257
What is the origin of semimembranosus?
Ischial tuberosity
258
What is the insertion of semimembranosus?
Medial condyle of tibia
259
What is the action of semimembranosus?
Extends thigh at hip Flexes leg at knee Rotates leg medially
260
What is the origin of gastrocnemius?
Lateral condyle of femur | Medial condyle of femur
261
What is the insertion of gastrocnemius?
Calcaneus
262
What is the action of gastrocnemius?
Plantar flexes foot at ankle
263
What is the origin of soleus?
Proximal tibia Proximal fibula Interosseous membrane
264
What is the insertion of soleus?
Calcaneus
265
What is the action of soleus?
Plantar flexes foot at ankle
266
What is the origin of tibialis posterior?
Proximal tibia Proximal fibula Interosseous membrane
267
What is the insertion of tibialis posterior?
Navicular | 2nd - 4th metatarsals
268
What is the action of tibialis posterior?
Plantar flexes foot at ankle | Inverts foot
269
What is the origin of flexor digitorum longus?
Posterior shaft of tibia
270
What is the insertion of flexor digitorum longus?
Distal phalanges of 2nd - 5th digits (toes)
271
What is the action of flexor digitorum longus?
Plantar flexes foot at ankle Inverts foot Flexes 2nd - 5th distal interphalangeal joints
272
What is the origin of flexor hallucis longus?
Middle shaft of fibula | Interosseous membrane
273
What is the insertion of flexor hallucis longus?
Distal phalanx of hallux (big toe)
274
What is the action of flexor hallucis longus?
Plantar flexes foot at ankle Inverts foot Flexes big toe

Anatomy (5 decks)

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