Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

CHI 282: Human Anatomy 2 > Lecture 8: Suboccipital And neck Muscles > Flashcards

Lecture 8: Suboccipital And neck Muscles Flashcards

0
Q

Rectus capitis posterior major

A

ORIGIN: Posterior tubercle of the axis
INSERTION: Lateral part of the occipital bone below the inferior nuchal line
ACTION: Extension and ipsilateral rotation of the head
NERVE SUPPLY: Suboccipital nerve and the dorsal primary ramus of C1
ARTERIAL SUPPLY: Occipital artery
Slide 6 or view muscle app

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

Identify the sub occipital muscles on slide 4
Name them first without looking.
What movement do they cause
What nerve are they innervated by?

A

Yep
They are the deep muscles inferior to the occipital bone
-innervated by the suboccipital nerve (dorsal ramus of C1)
They are responsible for extending the head at the atlanto occipital joint

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

Rectus capitis posterior minor

Slide 7

A

ORIGIN: Posterior tubercle of the atlas
INSERTION: Medial part of the occipital bone below the inferior nuchal line
ACTION: Extension of the head
NERVE SUPPLY: Suboccipital nerve and the dorsal primary ramus of C1
ARTERIAL SUPPLY: Occipital artery

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

Obliquus capitis superior

Slide 8

A

ORIGIN: Transverse process of the atlas
INSERTION: Occipital bone below the superior nuchal line
ACTION: Extension and ipsilateral rotation of the head.
Bilateral: extends head at atlanto-occipital joint
Unilateral: bends head laterally
NERVE SUPPLY: Suboccipital nerve and the dorsal primary ramus of C1
ARTERIAL SUPPLY: Occipital artery

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

Obliquus capitis inferior

Also be able to label all the suboccipital muscles on the cadaver picture- slide 10

A

ORIGIN: Spinous process of the axis (C2)
INSERTION: Transverse process of the atlas
ACTION: Ipsilateral rotation of the head (rotates atlas to turn face to same side
NERVE SUPPLY: Suboccipital nerve and the dorsal primary ramus of C1
ARTERIAL SUPPLY: Occipital artery

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

Prevertebral muscles

Name them and their overall action

A

Long us capitis
Longus colli (cervicis)
Rectus capitis anterior
Rectus capitis lateralis

Overall action: flex head at atlanto-occipital joint

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

Longus capitis

Slide 13

A

ORIGIN: Tendinous slips to the anterior tubercles of the transverse processes of the 3rd-6th cervical vertebrae
INSERTION: Inferior surface of the basilar part of the occipital bone
ACTION: Flexion of the head and neck
Bilateral: flexes head at atlanto-occipital joint
Unilateral-tilts and slightly rotates head to same side
NERVE SUPPLY: Cervical plexus and the ventral primary rami of the spinal nerves (C1-C4)
ARTERIAL SUPPLY: Deep cervical artery

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

Longus colli

Slide 14

A

ORIGIN: Anterior tubercles and the surfaces of the transverse processes of vertebrae C3-T3

INSERTION: Anterior tubercle of the transverse process of vertebrae C5-6; the anterior arch of the atlas; the anterior surface of the C2-C4 vertebral bodies

ACTION: Flexion, rotation and external flexion of the cervical spine

NERVE SUPPLY: Direct branches of the cervical and brachial plexus (C2-C7)

ARTERIAL SUPPLY: Deep cervical artery

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

Rectus capitis anterior

Slide 15

A

ORIGIN: Transverse process and lateral mass of the atlas

INSERTION: Inferior surface of the occipital bone

ACTION: Flexion of the head

NERVE SUPPLY: Ventral primary rami of the spinal nerves (C1-C2)

ARTERIAL SUPPLY: Ascending cervical artery

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

Rectus capitis lateralis

Slide 17

A

ORIGIN: Upper border of the transverse process of the atlas

INSERTION: Jugular process of the occipital bone

ACTION: Lateral flexion of the head
Bilateral: flexes head at atlanto-occipital joint
Unilateral: lateral flexion at atlanto-occipital joint

NERVE SUPPLY: Ventral primary rami of the spinal nerves (C1-C2)

ARTERIAL SUPPLY: Ascending cervical artery and the muscular branches of the vertebral artery

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

Prevertebral muscles

Name them and there main action

A

Posterior scalene
Middle scalene
Anterior scalene
Common main action of group is flexing the neck laterally

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

Anterior scalene

Slide 19

A

ORIGIN: Anterior tubercles of the transverse processes of the vertebrae C3-C6

INSERTION: Scalene tubercle at the 1st rib

ACTION: Elevation of the upper ribs; flexion and ipsilateral inclincation of the cervical spine (flexes neck laterally and elevates first rib)

NERVE SUPPLY: Brachial plexus (C5-C7)

ARTERIAL SUPPLY: Ascending cervial artery; the branch of the thyrocervical trunk

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

Middle scalene

Slide 20

A

ORIGIN: Posterior tubercles of the transverse processes of the vertebrae C2-C7

INSERTION: Upper surface of the 1st rib behind the subclavian artery

ACTION: Elevation of the upper ribs; flexion and ipsilateral inclincation of the cervical spine. (Flexes neck laterally and elevates 1st rib)

NERVE SUPPLY: Brachial plexus (C3-C8)

ARTERIAL SUPPLY: Ascending cervical artery

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

Posterior scalene

21

A

ORIGIN: Posterior tubercles of the transverse processes of the vertebrae C5-C7

INSERTION: Lateral surface of the 2nd rib

ACTION: Elevation of the upper ribs; flexion and ipsilateral inclination of the cervical spine
(Flexes neck laterally; elevates 2nd rib)

NERVE SUPPLY: Brachial plexus (C3-C8)

ARTERIAL SUPPLY: Ascending cervical artery

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

Be able to label the cross section of the prevertebral muscles
Slide 25

A

Yep

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

Label the muscles of the anterior neck region

Slide 27 and 28

A

H

16
Q
  1. What is the common main action of the suboccipital muscles?
  2. What is the common main action of the prevertebral muscles?
  3. What is the common main action of the scalenes?
  4. Which suboccipital muscle DOES NOT attach to the cranium?
  5. Which prevertebral muscle flexes the cervical vertebrae?
A
  1. What is the common main action of the suboccipital muscles? Extend head at atlanto-occipital joint
  2. What is the common main action of the prevertebral muscles? Flex head at atlanto-occipital joint
  3. What is the common main action of the scalenes? Flex neck laterally
  4. Which suboccipital muscle DOES NOT attach to the cranium? Obliquus capitis inferior
  5. Which prevertebral muscle flexes the cervical vertebrae? Longus colli

CHI 282: Human Anatomy 2 (19 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions