Origin

Posterior tubercles of transverse processes of C1 – C4 vertebrae

Insertion

Superior part of medial border of scapula

Action(s)

If the head is fixed, the levator scapulæ raises the medial angle of the scapula.

If the shoulder is fixed, the muscle inclines the neck to the corresponding side and rotates it in the same direction.

The levator scapula, along with the trapezius muscle, makes a shrug possible.

Nerve Supply

Cervical nerve (C3, C4) and dorsal scapular nerve (C5)

Arterial Supply

Dorsal scapular artery

Physical Exam

Enter physical examination maneuvers for muscle

Clinical Importance

Enter clinical importance of muscle

Disease States

Enter links to pages where muscle involved

Discussion

The number of vertebral attachments varies; a slip may extend to the occipital or mastoid, to the trapezius, scalene or serratus anterior, or to the first or second rib.

The muscle may be subdivided into several distinct parts from origin to insertion.

Levator claviculæ from the transverse processes of one or two upper cervical vertebræ to the outer end of the clavicle corresponds to a muscle of lower animals.

More or less union with the serratus anterior.

Figures

Click thumbnail for larger image

Credits:

From Wikipedia:
Levator scapulae

Attachments: