Posterior Neck (Trail Guide)

Question 1

Rectus Capitus Posterior Major

Answer 1

A: Rock and tilt head into extension, ipsilateral rotation

O: Spinous process of axis (C2)

I: Inferior nuchal line of the occiput

N: Suboccipital

Question 2

Rectus Capitus Posterior Minor

Answer 2

A: Rock and tilt head into extension

O: Tubercle of Posterior arch of atlas (C1)

I: Inferior nuchal line of the occiput

N: Suboccipital

Question 3

Oblique Capitis Superior

Answer 3

A: Extends head, Ipsilateral lateral flexion of head

O: Transverse process of atlas (C1)

I: Between the nuchal lines of the occiput

N: Suboccipital

Question 4

Oblique Capitis Inferior

Answer 4

A: Ipsilateral rotation of head

O: Spinous process of axis (C2)

I: Transverse process of atlas (C1)

N: Suboccipital

Question 5

What makes up the suboccipital triangle and what are it’s contents?

Answer 5

Borders:
Superomedial: Rectus Capitus Posterior Major
Superolateral: Obliquus Capitus Superior
Inferolateral: Obliquus Capitus Inferior

Contents:
- Vertebral artery
- Suboccipital nerve
- Also Suboccipital Venous Plexus

Question 6

Temporalis

Answer 6

A: Elevate the mandible (temporomandibular joint); Retract the mandible (TM joint)

O: Temporal fossa and fascia

I: Coronoid process and anterior edge of ramus of the mandible

N: Trigeminal (V) nerve (mandibular division)

Question 7

Masseter

Answer 7

A: Elevate the mandible (temporomandibular joint); May assist to protract the mandible (TM joint)

O: Zygomatic arch

I: Angle and ramus of mandible

N: Trigeminal (V) nerve (mandibular division)