Origin Lateral mass of atlas Dorlands
/Elsevier m_22/12549857 | Nerve Suboccipital nerve | |
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Insertion Lateral half of the inferior nuchal line Actions Extends head and flex head to the ipsilateral side Latin Musculus obliquus capitis superior | ||
The obliquus capitis superior muscle (/əˈblaɪkwəs ˈkæpᵻtᵻs/) is a small muscle in the upper back part of the neck and is one of the suboccipital muscles. It 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 on the external surface of the occipital bone. The muscle 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.
References
Obliquus capitis superior muscle Wikipedia(Text) CC BY-SA