Spinalis Cervicis Muscle
Attachments of Spinalis Cervicis: Origin & Insertion
Origin: Lower ligamentum nuchae; spinous process of C6 or C7 (sometimes T1 or T2).
Insertion: Spinous processes of axis (sometimes C3 or C4).
Actions of the Spinalis Cervicis Muscle:
- Bilateral action: extends and hyperextends the cervical (neck) portion of the vertebral column.
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Nerve Supply to Spinalis Cervicis:
- dorsal rami of the lower cervical and thoracic spinal nerves.