Root of the neck

Question 1

Anterior Scalene

Answer 1

runs from TPs of CV3-CV6 to the scalene tubercle of the first rib

elevates rib, when one side is active it side bends and rotates the cervical column to the opposite side.
when both sides are active it flexes the vertebral column
n: Ventral rami C3-C6

Question 2

Middle scalene

Answer 2

runs from TPs of CV2-CV7 and inserts on the1st rib posterior to the groove for the subclavian a.
A: elevates 1st rib, SB and rotates cervical column

flexes the vertebral column when acting b/l

N: ventral rami of C3-C8

Question 3

Posterior scalene

Answer 3

run from the posterior tubercles of CV5-CV7 to the outer surface of rib 2

elevates 2nd rib, SB and rotates the cervical column, b/l flexes the vertebral column

ventral rami of C7-C8 )brachial plexus

Question 4

Longus capitis

Answer 4

O: runs from TPs of CV3-CV6 and insets on the inferior surface of the basilar portion of teh occipital bone
A: flexes the head and neck
N innervated by ventral rami of spinal nn. C1-4

Question 5

Longus coli

Answer 5

O: runs anterior surface of vertebral bodies above to the transverse processes below
lower portion runs from anterior vertebral bodies below to TPs above

tie vertebrae together
A: flex neck
Upper rotate to same side
lower rotate to opposite side

N: ventral rami C2-C7