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Obliquus capitis superior

- 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