The Hip
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Rectus Capitis Anterior

origin: anterior surface of the lateral mass of the atlas and the root of its transverse process;
insertion: the inferior surface of the occipital bone anterior to the foreamen magnum;
action: aids in flexion of the head and the neck;
nerve supply: C1, C2;
synergists:  Sternocleidomastoid, Longus Colli, Longus Capitis