Longissimus capitis

Longissimus capitis

Anatomy

Origin:
Posterior surface of transverse processes of T1 to T5 and the articular tubercle of C4 to C7.

Insertion:
Posterior margin of mastoid process and adjacent occipital bone.

Functions

Extends the head and rotates the head to the same side.

Supply

Innervation:
Dorsal rami of cervical and thoracic spinal nerves (C6 to T4).

Blood Supply:
Muscular branches of the occipital artery from the external carotid artery.

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