Obliquus capitis inferior muscle
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| Obliquus capitis inferior muscle | ||
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| Deep muscles of the back. (Obliq. infer. labeled at upper left.) | ||
| Latin | musculus obliquus capitis inferior | |
| Gray's | subject #116 402 | |
| Origin: | spinous process of the axis | |
| Insertion: | lateral mass of atlas | |
| Artery: | ||
| Nerve: | suboccipital nerve | |
| Action: | ||
| Dorlands/Elsevier | m_22/12549849 | |
The obliquus capitis inferior muscle is the larger of the two oblique muscles of the neck. It arises from the apex of the spinous process of the axis and passes laterally and slightly upward, to be inserted into the lower and back part of the transverse process of the atlas.
It is responsible for rotation of the head and first cervical vertebra (atlanto-axial joint).
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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 As such, some of the information contained herein may be outdated.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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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: obliques (external, internal) - transversus abdominis - rectus abdominis - pyramidalis - cremaster - quadratus lumborum
PELVIS: levator ani (iliococcygeus, pubococcygeus, puborectalis) - coccygeus
PERINEUM: sphincter ani (externus, internus) - superficial perineal pouch (transversus perinei superficialis - bulbospongiosus - ischiocavernosus) - deep perineal pouch (transversus perinei profundus, sphincter urethrae membranaceae)
