Muscle of the Neck (Quiz 3)

Question 1

4 small muscles deep to Semispinalis Capitis, Collectively refered to as…

Answer 1

Suboccipital Muscles

Question 2

The 4 Suboccipital muscles

Answer 2

1. Rectus Capitus Posterior Major
2. Rectus Capitus Posterior Minor
3. Obliquus Capitus Inferior
4. Obliquus Capitus Superior

Question 3

Inferior attachment: SP of C2

Superior attachment: Inferior Nuchal Line

Actions(Unilateral): Ipsilateral rotation of the head

Actions (Bilateral): Extend the head on the neck (tip back head)

Answer 3

Rectus Capitis Posterior Major

Question 4

Inferior Attachment: Posteior Arch of C1

Superior Attachment: Inferior Nuchal line

Action: Extend the head on the neck

Answer 4

Rectus Capitis Posterior Minor

*Also attaches to the Dura Mater, which can result in headaches by disruption of normal CSF flow

Question 5

Inferior Attachment: SP of C2

Superior Attachment: TVP of C1

Action: Ipsilateral rotation of the head

Answer 5

Obliquus Capitis Inferior

Question 6

Inferior Attachment: TVP of C1

Superior Attachment: Between superior and inferior Nuchal line

Action (Unilateral Contraction): lateral flexion of the head on the neck

Action (Bilateral Contraction): extend the head on the neck

Answer 6

Obliquus Capitis Superior

Question 7

The 3 most lateral Suboccipital muscles make up the…

Answer 7

Suboccipital Triangle

Question 8

The Inferolateral border of the Suboccipital Triangle

Answer 8

Obliquus Capitis Inferior

Question 9

The Superolateral border of the Suboccipital Triangle

Answer 9

Obliquus Capitis Superior

Question 10

The Superomedial border of the Suboccipital triangle

Answer 10

Rectus Capitis Posterior Major

Question 11

The floor of the Suboccipital Triangle

Answer 11

Posterior Atlanto-Occipital Membrane

Question 12

The roof of the Suboccipital Triangle

Answer 12

Semispinalis Muscle

Question 13

Contents of the Suboccipital Triangle

Answer 13

Vertebral Artery and Suboccipital Nerve

Question 14

4 Anterior/Lateral Neck Muscles

Answer 14

1. Rectus Capitis Anterior
2. Rectus Capitis Lateralis
3. Longus Colli (AKA Longus Cervicis)
4. Longus Capitis

Question 15

Inferior Attachment: Lateral mass of C1

Superior Attachment: Occiput

Action: Flexes head on the neck

Answer 15

Rectus Capitis Anterior

Question 16

Inferior Attachment: TVP of C1

Superior Attachment: Occiput

Actions:

• Flexes head on the neck
• Laterally flexes head on the neck

Answer 16

Rectus Capitis Lateralis

Question 17

Inferior attachment: Body of T3

Superior attachment: Anterior Tubercle of C1

*Anchors to the bodies and TVPs of the cervical spine

Action: Flexion of the neck (weak - close to axis of movement)

Answer 17

Longus Colli

Question 18

Inferior attachment: TVPs of C3-C6

Superior attachment: Occiput

Action: flexion of the head on the neck

Answer 18

Longus Capitis

Question 19

3 Lateral Neck Muscles

Answer 19

• Anterior Scalene
• Middle Scalene
• Posterior Scalene

Question 20

One of the Scalene muscles

Superior attachment: anterior tubercles of C3-C6 TVPs

Inferior attachment: scalene tubercle of 1st rib

Answer 20

Anterior Scalene

Question 21

Actions of Anterior Scalene

Answer 21

• Unilateral Contraction: Ipsilateral lateral flexion of the neck, and contralateral rotation of the neck (back)
• Bilateral Contraction: Flexion of the neck
• During Forced Inhalation: Elevates rib 1

Question 22

One of the Scalene Muscles

Superior attachment: posterior tubercles of C2-C7 TVPs

Inferior attachment: Rib 1

Answer 22

Middle Scalene

Question 23

Actions of Middle Scalene

Answer 23

• Unilateral: Ipsilateral Lateral flexion of neck, and contralateral rotation of neck (weak)
• During forced Inhalation: elevates 1st rib

Question 24

One of the Scalene Muscles

Superior attachment: posterior tubercles of C4-C6 TVPs

Inferior attachment: Rib 2

Answer 24

Posterior Scalene

Question 25

Actions of Posterior Scalene

Answer 25

• Unilateral: ipsilateral lateral flexion of neck
• During forced inhalation: elevates 2nd rib