Lateral Prevertebral muscles

Question 1

Prevertebral Muscles (Lateral)

Answer 1

Rectus capitis lateralis

Splenius capitis muscle

Levator scapulae

Middle scalene

Posterior scalene

Question 2

O: Transverse process of vertebrae c1-c4

I: Medial border of scapulae

A: draws scapula supermedially, elevate scapula
-rotates glenoid cavity & lateral flexion of neck, extension of neck

Fd: inf-ant

Answer 2

Levator scapulae

Question 3

O: posterior tubercles of transverse processes of vertebrae c5-c7

I: external surface of rib 2

A: elevate the 2nd rib and tilt the neck to the same side

Fd: inf-post

Answer 3

Posterior scalene

Question 3

O: posterior tubercles of transverse processes of vertebrae c3-c5

I: sup border of rib 1

A: neck lateral flexion,elevates rib 1

Fd: inf-post

Answer 3

Middle scalene

Question 4

O: sup surface of the transverse process of the occipital bone

I: inf surface of the jugular process of the occipital bone

A: stabilizes the atlanto occipital joint, head lateral flexion

Fd: inf

Answer 4

Rectus capitis lateralis

Question 5

O: spinous process of vertebrae c7-t3

I: lateral superior nuchal line of occipital bone and mastoid process

A: bilateral- extends head and neck
Unilateral- lateral flexion & rotation of head

Fd: sup

Answer 5

Splenius capitis