- origin: the superior surface of the transverse process of the atlas;
- insertion: the occipital bone, between the superior and inferior nuchal
lines, lateral of the
Semispinalis capitis ;
- action: extension and lateral flexion of the head at the neck;
- nerve supply: branch of the dorsal primary division of the suboccipital
nerve;
- synergists:
Rectus Capitis Posterior Minor ,
Rectus Capitis Posterior Major ,
Longissimus Capitis ,
Semispinalis capitis ;
