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Obliquus capitis superior muscle
| Obliquus capitis superior muscle |
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| 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 |
| Artery: |
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| Nerve: |
suboccipital nerve |
| Action: |
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| Dorlands/Elsevier |
m_22/12549857 |
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.
Additional images
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 As such, some of the information contained herein may be outdated.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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List of muscles of torso |
| BACK |
splenius (capitis, cervicis) - erector spinae (iliocostalis, longissimus, spinalis) - latissimus dorsi
transversospinales: (semispinalis dorsi, semispinalis cervicis, semispinalis capitis, multifidus, rotatores) - interspinales - intertransversarii |
| SUBOCCIPITAL |
rectus capitis posterior (major, minor) - obliquus capitis (inferior, superior) |
| CHEST |
intercostales (external, internal, innermost) - subcostales - transversus thoracis - levatores costarum - serratus posterior (inferior, superior) - diaphragm |
| ABDOMEN |
anterior/lateral wall: obliques (external, internal) - transversus abdominis - rectus abdominis - pyramidalis
posterior wall: quadratus lumborum - psoas major/psoas minor - iliacus
cremaster |
| PELVIS/FLOOR |
levator ani (iliococcygeus, pubococcygeus, puborectalis) - coccygeus |
| PERINEUM |
anal triangle: sphincter ani (externus, internus)
superficial perineal pouch (superficial transverse perineal, bulbospongiosus, ischiocavernosus)
deep perineal pouch (deep transverse perineal, sphincter urethrae membranaceae) |
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This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Obliquus_capitis_superior_muscle". A list of authors is available in Wikipedia.
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