Obliquus capitis superior muscle

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Obliquus capitis superior muscle
Deep muscles of the back. (Obliq. super. labeled at upper left.)
Latin musculus obliquus capitis superior
Gray's subject #116 402
Origin lateral mass of atlas
Insertion    lateral half of the inferior nuchal line
Nerve: suboccipital nerve

The Obliquus capitis superior muscle arises from the lateral mass of the atlas bone. It passes superiorly and posteriorly to insert into the lateral half of the inferior nuchal line. It is innervated by the suboccipital nerve, the dorsal ramus of the first spinal nerve.

It acts at the atlanto-occipital joint to extend the head and flex the head to the ipsilateral side.

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This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained herein may be outdated. Please edit the article if this is the case, and feel free to remove this notice when it is no longer relevant.

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