Brainscape's Knowledge GenomeTM


Top Flashcards (Certified)
All Flashcards

Anatomy > Truck Muscles > Flashcards

Truck Muscles Flashcards

1
Q

Origin: Platysma

A

Skin over edge of mandible

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Insertion: Platysma

A

Skin over clavicles

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Innervation: Platysma

A

Facial nerve (CN VII)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Action: Platysma

A

Tenses skin on neck

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Notes: Platysma

A

Superficial layer

Runs from mouth and mandible to 2nd rib

Attaches to fascia and skin

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Origin: Orbicularis Oris

A

-

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Insertion: Orbicularis Oris

A

-

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Innervation: Orbicularis Oris

A

Facial nerve (CN VII)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Action: Orbicularis Oris

A

Purses lips

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Notes: Orbicularis Oris

A

Superficial layer

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Origin: Orbicularis Oculi

A

-

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Insertion: Orbicularis Oculi

A

-

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Innervation: Orbicularis Oculi

A

Facial nerve (CN VII)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Action: Orbicularis Oculi

A

Closes eyelid

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Notes: Orbicularis Oculi

A

Superficial layer

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Origin: Zygomaticus Major and Minor

A

-

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Insertion: Zygomaticus Major and Minor

A

-

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Innervation: Zygomaticus Major and Minor

A

Facial nerve (CN VII)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Action: Zygomaticus Major and Minor

A

Smiling

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Notes: Zygomaticus Major and Minor

A

Superficial layer

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

Origin: Levator Labii Superioris

A

-

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

Insertion: Levator Labii Superioris

A

-

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

Innervation: Levator Labii Superioris

A

Facial nerve (CN VII)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

Action: Levator Labii Superioris

A

Elevates upper lip

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Notes: Levator Labii Superioris
Superficial layer
26
Origin: Risorius
-
27
Insertion: Risorius
-
28
Innervation: Risorius
Facial nerve (CN VII)
29
Action: Risorius
Smiling
30
Notes: Risorius
Superficial layer
31
Origin: Depressor Anguli Oris
-
32
Insertion: Depressor Anguli Oris
-
33
Innervation: Depressor Anguli Oris
Facial nerve (CN VII)
34
Action: Depressor Anguli Oris
Depresses angle of mouth
35
Notes: Depressor Anguli Oris
Superficial layer
36
Origin: Levator Anguli Oris
-
37
Insertion: Levator Anguli Oris
-
38
Innervation: Levator Anguli Oris
Facial nerve (CN VII)
39
Action: Levator Anguli Oris
Lifts angle of mouth
40
Notes: Levator Anguli Oris
Deep layer
41
Origin: Depressor Labii Inferioris
-
42
Insertion: Depressor Labii Inferioris
-
43
Innervation: Depressor Labii Inferioris
Facial nerve (CN VII)
44
Action: Depressor Labii Inferioris
Depresses lower lip
45
Notes: Depressor Labii Inferioris
Deep layer
46
Origin: Mentalis
-
47
Insertion: Mentalis
-
48
Innervation: Mentalis
Facial nerve (CN VII)
49
Action: Mentalis
Wrinkles chin, protrudes lower lip
50
Notes: Mentalis
Deep layer
51
Origin: Buccinator
-
52
Insertion: Buccinator
-
53
Innervation: Buccinator
Facial nerve (CN VII)
54
Action: Buccinator
Sucking, whistling
55
Notes: Buccinator
Deep layer
56
Origin: Superior, Anterior and Posterior Auricular muscles
-
57
Insertion: Superior, Anterior and Posterior Auricular muscles
-
58
Innervation: Superior, Anterior and Posterior Auricular muscles
Facial nerve (CN VII)
59
Action: Superior, Anterior and Posterior Auricular muscles
Wiggle ears
60
Origin: Frontalis
-
61
Insertion: Frontalis
-
62
Innervation: Frontalis
Facial nerve (CN VII)
63
Action: Frontalis
1. Elevates eyebrows | 2. Wrinkles forehead
64
Origin: Occipitalis
-
65
Insertion: Occipitalis
-
66
Innervation: Occipitalis
Facial nerve (CN VII)
67
Action: Occipitalis
Pulls scalp back
68
Origin: Longus Capitis
Transverse processes of mid-cervical vertebrae
69
Insertion: Longus Capitis
Occipital bone
70
Innervation: Longus Capitis
Segmental cervical ventral rami
71
Action: Longus Capitis
Flexes head and neck
72
Origin: Longus Colli
1. Vertical portion: lower cervical vertebrae 2. Upper oblique portion: upper cervical bodies 3. Lower oblique portion: lower cervical bodies
73
Insertion: Longus Colli
1. Vertical portion: upper cervical vertebrae 2. Upper oblique portion: mid-cervical transverse processes 3. Lower oblique portion: mid-cervical transverse processes
74
Innervation: Longus Colli
Segmental ventral rami
75
Action: Longus Colli
Flexes neck
76
Notes: Longus Colli
Fibers of vertical and lower oblique portions run upward Fibers of upper oblique portion run downward
77
Origin: Rectus Capitis Anterior
Atlas
78
Insertion: Rectus Capitis Anterior
Occipital bone
79
Innervation: Rectus Capitis Anterior
Ventral rami C1, 2
80
Action: Rectus Capitis Anterior
Flexes head
81
Origin: Rectus Capitis Lateralis
Atlas
82
Insertion: Rectus Capitis Lateralis
Occipital bone
83
Innervation: Rectus Capitis Lateralis
Ventral rami C1, 2
84
Action: Rectus Capitis Lateralis
Lateral flexion of head
85
Origin: Anterior Scalene
Transverse process of mid-cervical vertebrae
86
Insertion: Anterior Scalene
1st rib
87
Innervation: Anterior Scalene
Ventral rami of cervical nerves
88
Action: Anterior Scalene
1. Raises first rib | 2. Laterally flexes neck
89
Origin: Middle Scalene
All cervical transverse processes
90
Insertion: Middle Scalene
1st rib
91
Innervation: Middle Scalene
Ventral rami of cervical nerves
92
Action: Middle Scalene
1. Raises first rib | 2. Laterally flexes neck
93
Origin: Posterior Scalene
Transverse processes of mid-cervical vertebrae
94
Insertion: Posterior Scalene
2nd rib
95
Innervation: Posterior Scalene
Ventral rami of cervical nerves
96
Action: Posterior Scalene
1. Raises second rib | 2. Laterally flexes neck
97
Origin: Sternocleidomastoid
1. Manubrium | 2. Medial 1/3 of clavicle
98
Insertion: Sternocleidomastoid
Mastoid process
99
Innervation: Sternocleidomastoid
Accessory nerve (CN XI)
100
Action: Sternocleidomastoid
1. Flexes neck | 2. Rotates head to opposite side
101
Origin: Digastric
1. Posterior belly: mastoid process | 2. Anterior belly: inner mandible, just lateral to midline
102
Insertion: Digastric
Hyoid bone
103
Innervation: Digastric
1. Posterior belly: facial nerve (CN VII) | 2. Anterior belly: trigeminal nerve (CN V3)
104
Action: Digastric
1. Moves hyoid superiorly and posteriorly in swallowing | 2. Opens jaw against resistance
105
Origin: Omohyoid
1. Inferior belly: superior margin of scapula | 2. Superior belly: hyoid
106
Insertion: Omohyoid
Intermediate tendon attaches to posterior clavicle and 1st rib by fascial sling
107
Innervation: Omohyoid
Branches of ansa cervicalis
108
Action: Omohyoid
Strap muscles as a group, depress larynx, hyoid bone and floor of mouth during swallowing
109
Notes: Omohyoid
Strap muscle
110
Origin: Sternohyoid
Manubrium
111
Insertion: Sternohyoid
Hyoid bone
112
Innervation: Sternohyoid
Branches of ansa cervicalis
113
Action: Sternohyoid
Strap muscles as a group, depress larynx, hyoid bone and floor of mouth during swallowing
114
Notes: Sternohyoid
Strap muscle
115
Origin: Sternothyroid
Manubrium
116
Insertion: Sternothyroid
Thyroid cartilage
117
Innervation: Sternothyroid
Branches of ansa cervicalis
118
Action: Sternothyroid
Strap muscles as a group, depress larynx, hyoid bone and floor of mouth during swallowing
119
Notes: Sternothyroid
Strap muscle
120
Origin: Thyrohyoid
Thyroid cartilage
121
Insertion: Thyrohyoid
Hyoid bone
122
Innervation: Thyrohyoid
C1 fibers that run with hypoglossal nerve (CN XII)
123
Action: Thyrohyoid
Strap muscles as a group, depress larynx, hyoid bone and floor of mouth during swallowing
124
Notes: Thyrohyoid
Strap muscle
125
Origin: Masseter
Zygomatic arch
126
Insertion: Masseter
Ramus of mandible
127
Innervation: Masseter
Mandibular division of CN V (V3)
128
Action: Masseter
1. Closes mandible 2. Protracts mandible 3. Deep fibers retract mandible
129
Origin: Temporalis
Temporal fossa
130
Insertion: Temporalis
Coronoid process of mandible
131
Innervation: Temporalis
Mandibular division of CN V (V3)
132
Action: Temporalis
1. Closes mandible 2. Retracts mandible 3. Abduct towards side of abduction
133
Origin: Lateral Pterygoid
Lateral pterygoid plate (lateral surface)
134
Insertion: Lateral Pterygoid
1. Neck of mandible 2. TM joint capsule 3. Articular disc
135
Innervation: Lateral Pterygoid
Mandibular division of CN V (V3)
136
Action: Lateral Pterygoid
1. Opens mandible 2. Protracts mandible 3. Protracts during abduction (opposite side of abduction)
137
Origin: Medial Pterygoid
Lateral pterygoid plate (medial surface)
138
Insertion: Medial Pterygoid
Ramus of mandible, inner surface
139
Innervation: Medial Pterygoid
Mandibular division of CN V (V3)
140
Action: Medial Pterygoid
Closes mandible
141
Origin: External Intercostals
Inferior border of upper rib
142
Insertion: External Intercostals
Superior border of lower rib
143
Innervation: External Intercostals
Intercostal nerves
144
Action: External Intercostals
Elevates ribs for inhalation
145
Notes: External Intercostals
- Runs between adjacent ribs from tubercle of the rib as far forward as costochondral junction - Anteriorly external intercostal membrane continues to sternum - Fibers run down & forward
146
Origin: Internal Intercostals
Inferior border of upper rib
147
Insertion: Internal Intercostals
Superior border of lower rib
148
Innervation: Internal Intercostals
Intercostal nerves
149
Action: Internal Intercostals
Depresses ribs for exhalation
150
Notes: Internal Intercostals
- Fibers run down & backwd - Run from costal angle to sternum (incomplete posteriorly) - Continues posteriorly as the internal intercostal membrane
151
Origin: Innermost Intercostals
Superior border of lower rib
152
Insertion: Innermost Intercostals
Inferior border of the upper rib
153
Innervation: Innermost Intercostals
Intercostal nerves
154
Action: Innermost Intercostals
-
155
Notes: Innermost Intercostals
- Less developed than the ext and int intercostals - Runs down and backward - Found only in middle section of the intercostal space (costal angle to costochondral junction) - Nerves and vessels run between innermost and internal intercostal
156
Notes: Innermost Intercostals
- Less developed than the ext and int intercostals - Runs down and backward - Found only in middle section of the intercostal space (costal angle to costochondral junction) - Nerves and vessels run between innermost and internal intercostal
157
Origin: Subcostal
Posterior rib
158
Insertion: Subcostal
Posterior rib
159
Innervation: Subcostal
Intercostal nerves
160
Action: Subcostal
-
161
Notes: Subcostal
- On inner surface of posterior thorax | - Fibers cross 2 or 3 ribs
162
Origin: Transversus Thoracis
Sternum
163
Insertion: Transversus Thoracis
Costal cartilage
164
Innervation: Transversus Thoracis
Intercostal nerves
165
Action: Transversus Thoracis
Maintains thoracic wall during respiration
166
Notes: Transversus Thoracis
- On inner surface of anterior thorax - Fibers cross 2 or 3 ribs - Helps to secure blood vessels
167
Origin: External Abdominal Oblique
Slips from lower 8 ribs
168
Insertion: External Abdominal Oblique
1. Aponeurosis fuses at linea alba (contributes to rectus sheath) 2. Iliac crest 3. ASIS 4. Pubic tubercle 5. Pubic crest 6. Pubic symphysis
169
Innervation: External Abdominal Oblique
Segmental innervation by T7-T12 or L1
170
Action: External Abdominal Oblique
1. Add strength to abdominal wall because of various fiber directions 2. Protection of abdominal contents 3. Hold in abdominal contents 4. Support posture – lumbar stabilization especially via transverses abdominus and attachment to thoracolumbar fascia 5. Forced expiration 6. Bowel movement – muscles compress abdominal contents 7. Movement of trunk a. Simple flexion: all muscles involved, especially rectus abdominus b. Pelvic tilts c. Oblique flexion or rotation: int oblique on one side and ext oblique on the other side work together
171
Notes: External Abdominal Oblique
- Interdigitates with serratus anterior - Fibers run medially and downward - Lower free edge forms inguinal ligament (ASIS to pubic tubercle)
172
Origin: Internal Abdominal Oblique
1. Thoracolumbar fascia | 2. Iliac crest
173
Insertion: Internal Abdominal Oblique
1. Lower 3 or 4 ribs and costal cartilages | 2. Linea alba
174
Innervation: Internal Abdominal Oblique
Segmental innervation by T7-T12 or L1
175
Action: Internal Abdominal Oblique
1. Add strength to abdominal wall because of various fiber directions 2. Protection of abdominal contents 3. Hold in abdominal contents 4. Support posture – lumbar stabilization especially via transverses abdominus and attachment to thoracolumbar fascia 5. Forced expiration 6. Bowel movement – muscles compress abdominal contents 7. Movement of trunk a. Simple flexion: all muscles involved, especially rectus abdominus b. Pelvic tilts c. Oblique flexion or rotation: int oblique on one side and ext oblique on the other side work together
176
Notes: Internal Abdominal Oblique
Fibers run medially and upward
177
Origin: Transversus Abdominus
1. Thoracolumbar fascia 2. Inner surface of costal cartilages 3. Iliac crest
178
Insertion: Transversus Abdominus
Linea alba
179
Innervation: Transversus Abdominus
Segmental innervation by T7-T12 or L1
180
Action: Transversus Abdominus
1. Add strength to abdominal wall because of various fiber directions 2. Protection of abdominal contents 3. Hold in abdominal contents 4. Support posture – lumbar stabilization especially via transverses abdominus and attachment to thoracolumbar fascia 5. Forced expiration 6. Bowel movement – muscles compress abdominal contents 7. Movement of trunk a. Simple flexion: all muscles involved, especially rectus abdominus b. Pelvic tilts c. Oblique flexion or rotation: int oblique on one side and ext oblique on the other side work together
181
Notes: Transversus Abdominus
Fibers run horizontally
182
Origin: Rectus Abdominus
1. Xiphoid process | 2. Costal cartilages of ribs 5-7
183
Insertion: Rectus Abdominus
1. Pubic crest | 2. Pubic tubercle
184
Innervation: Rectus Abdominus
Segmental innervation by T7-T12 or L1
185
Action: Rectus Abdominus
1. Add strength to abdominal wall because of various fiber directions 2. Protection of abdominal contents 3. Hold in abdominal contents 4. Support posture – lumbar stabilization especially via transverses abdominus and attachment to thoracolumbar fascia 5. Forced expiration 6. Bowel movement – muscles compress abdominal contents 7. Movement of trunk a. Simple flexion: all muscles involved, especially rectus abdominus b. Pelvic tilts c. Oblique flexion or rotation: int oblique on one side and ext oblique on the other side work together
186
Notes: Rectus Abdominus
Fibers run vertically
187
Origin: Splenius Cervicis
Spinous processes T3-T6
188
Insertion: Splenius Cervicis
Transverse processes C1-3
189
Innervation: Splenius Cervicis
Dorsal rami
190
Action: Splenius Cervicis
1. Extends neck (bilateral contraction) | 2. Rotates head to same side (unilateral contraction)
191
Origin: Splenius Capitis
1. Spinous processes C7- T4 | 2. Ligamentum nuchae
192
Insertion: Splenius Capitis
1. Mastoid process | 2. Lateral part of superior nuchal line
193
Innervation: Splenius Capitis
Dorsal rami
194
Action: Splenius Capitis
1. Extends neck (bilateral contraction) | 2. Rotates head to same side (unilateral contraction)
195
Origin: Erector Spinae Iliocostalis a. Lumborum b. Thoracis c. Cervicis
a. Lumborum (common origin): 1. Iliac crest 2. Sacrum 3. Spinous processes of T11-T12 4. Lumbar vertebrae b. Thoracis: lower ribs c. Cervicis: upper ribs
196
Insertion: Erector Spinae Iliocostalis a. Lumborum b. Thoracis c. Cervicis
1. Lumborum: lower ribs 2. Thoracis: upper ribs insertion 3. Cervicis: cervical transverse processes
197
Innervation: Erector Spinae Iliocostalis a. Lumborum b. Thoracis c. Cervicis
Dorsal rami
198
Action: Erector Spinae Iliocostalis a. Lumborum b. Thoracis c. Cervicis
1. Extends back (bilateral contraction) 2. Lateral flexion of trunk (unilateral contraction) 3. Controls flexion eccentrically against gravity
199
Notes: Erector Spinae Iliocostalis a. Lumborum b. Thoracis c. Cervicis
Most lateral portion of erector spinae
200
Origin: Erector Spinae Longissimus a. Thoracis b. Cervicis c. Capitis
Thoracis (common origin): 1. Iliac crest 2. Sacrum 3. Spinous processes of T11-T12 4. Lumbar vertebrae Cervicis: upper 4-6 thoracic transverse processes Capitis: upper cervical transverse processes
201
Insertion: Erector Spinae Longissimus a. Thoracis b. Cervicis c. Capitis
Thoracis: lateral ribs and thoracic transverse processes Cervicis: cervical 2-6 processes Capitis: mastoid process
202
Innervation: Erector Spinae Longissimus a. Thoracis b. Cervicis c. Capitis
Dorsal rami
203
Action: Erector Spinae Longissimus a. Thoracis b. Cervicis c. Capitis
1. Extends back (bilateral contraction) 2. Lateral flexion of trunk (unilateral contraction) 3. Controls flexion eccentrically against gravity
204
Notes: Erector Spinae Longissimus a. Thoracis b. Cervicis c. Capitis
Intermediate portion of erector spinae
205
Origin: Erector Spinae Spinalis
Lower thoracic spinous processes
206
Insertion: Erector Spinae Spinalis
Upper thoracic spinous processes
207
Innervation: Erector Spinae Spinalis
Dorsal rami
208
Action: Erector Spinae Spinalis
1. Extends back (bilateral contraction) 2. Lateral flexion of trunk (unilateral contraction) 3. Controls flexion eccentrically against gravity
209
Notes: Erector Spinae Spinalis
Only well developed in thoracic region
210
Origin: Semispinalis a. Thoracis b. Cervicis c. Capitis
Thoracis and cervicis: transverse processes at appropriate level Capitis: inferior nuchal line
211
Insertion: Semispinalis a. Thoracis b. Cervicis c. Capitis
Thoracis and cervicis: spinous processes at appropriate level Capitis: superior nuchal line
212
Innervation: Semispinalis a. Thoracis b. Cervicis c. Capitis
Dorsal rami
213
Action: Semispinalis a. Thoracis b. Cervicis c. Capitis
Rotation to the opposite side
214
Notes: Semispinalis a. Thoracis b. Cervicis c. Capitis
Transversospinalis muscles -Well developed in cervical area, not seen in lumbar area Lie deep to and are shorter than erector spinae fibers -Thoracis and cervicis fibers cross 4-6 segments -Thoracis and cervicis run upward from lateral to medial (transverse process to spinous process) -Capitis fibers run vertically
215
Origin: Multifidus
Transverse processes
216
Insertion: Multifidus
Spinous processes
217
Innervation: Multifidus
Dorsal rami
218
Action: Multifidus
Rotation to the opposite side
219
Notes: Multifidus
Transversospinalis muscles - Lie deep to and are shorter than erector spinae fibers - Cross 2-4 segments up to C2 - Well developed in lumbar region and easily seen there b/c there is no semispinalis in lumbar - Run upward from lateral to medial (transverse process to spinous process)
220
Origin: Rotators
Transverse processes
221
Insertion: Rotators
Spinous processes
222
Innervation: Rotators
Dorsal rami
223
Action: Rotators
Rotation to the opposite side
224
Notes: Rotators
Transversospinalis muscles - Lie deep to and are shorter than erector spinae fibers - Cross 1 (short) to 2 (long) segments - Run upward from lateral to medial (transverse process to spinous process)
225
Origin: Segmental muscles a. Interspinales b. Intertransversarii
Across adjacent vertebrae on either transverse processes or deep
226
Insertion: Segmental muscles a. Interspinales b. Intertransversarii
-
227
Innervation: Segmental muscles a. Interspinales b. Intertransversarii
Dorsal rami
228
Action: Segmental muscles a. Interspinales b. Intertransversarii
Extends from one vertebra to the next
229
Notes: Segmental muscles a. Interspinales b. Intertransversarii
Only found in cervical and lumbar regions | Will not see in lab
230
Origin: Obliquus Capitis Inferior
Spinous process of axis
231
Insertion: Obliquus Capitis Inferior
Transverse process of atlas
232
Innervation: Obliquus Capitis Inferior
Suboccipital nerve (C1)
233
Action: Obliquus Capitis Inferior
Rotates atlas and head to same side
234
Notes: Obliquus Capitis Inferior
- Suboccipital muscles | - Connect atlas & axis to each other and to the skull
235
Origin: Obliquus Capitis Superior
Transverse process of atlas
236
Insertion: Obliquus Capitis Superior
Near inferior nuchal line
237
Innervation: Obliquus Capitis Superior
Suboccipital nerve (C1)
238
Action: Obliquus Capitis Superior
1. Extends neck (bilateral contraction) | 2. Lateral flexion of neck (unilateral contraction)
239
Notes: Obliquus Capitis Superior
Suboccipital muscles Connect atlas and axis to each other and to the skull
240
Origin: Rectus Capitis Posterior Major
Spinous process of axis
241
Insertion: Rectus Capitis Posterior Major
Inferior nuchal line near middle
242
Innervation: Rectus Capitis Posterior Major
Suboccipital nerve (C1)
243
Action: Rectus Capitis Posterior Major
Extends neck (bilateral contraction)
244
Notes: Rectus Capitis Posterior Major
Suboccipital muscles Connect atlas and axis to each other and to the skull
245
Origin: Rectus Capitis Posterior Minor
Posterior tubercle of atlas
246
Insertion: Rectus Capitis Posterior Minor
Partially under cover of Major near inferior nuchal line
247
Innervation: Rectus Capitis Posterior Minor
Suboccipital nerve (C1)
248
Action: Rectus Capitis Posterior Minor
Extends neck (bilateral contraction)
249
Notes: Rectus Capitis Posterior Minor
Suboccipital muscles Connect atlas and axis to each other and to the skull

Anatomy (7 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions