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The Obliquus Capitis Superior is a member of the Suboccipital Group, which is composed of the:
- Rectus capitis posterior major
- Rectus capitis posterior minor
- Obliquus capitis superior
- Obliquus capitis inferior
- The obliquus capitis superior attaches from the transverse process of the atlas (C1) to the occiput.
- The superior attachment is onto the occiput between the superior and inferior nuchal lines.
- Protracts the head at the atlanto-occipital joint.
- Laterally flexes the head at the atlanto-occipital joint.
- Extends the head at the atlanto-occipital joint.
NOTE: A tight (overly facilitated) obliquus capitis superior can contribute to the postural dysfunction pattern of forward head posture, which is a part of the larger postural dysfunction pattern of upper crossed syndrome.