- origin: the apex of the spine process of the axis;
- insertion: the inferior and dorsal part of the transverse process of
the atlas;
- action: rotates the atlas, turning the face toward the same side;
- nerve supply: a branch of the dorsal primary division of the
suboccipital nerve;
- synergists:
Longissimus Capitis ,
Rectus Capitis Posterior Major ;
