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The Rectus Capitis Posterior Minor 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 rectus capitis posterior minor attaches from the posterior tubercle of the atlas (C1) to the inferior nuchal line of the occiput.
- The superior attachment is onto the medial 1/2 of the inferior nuchal line.
- Protracts the head at the atlanto-occipital joint.
- Extends the head at the atlanto-occipital joint.
- Laterally flexes the head at the atlanto-occipital joint.
NOTE: A tight (overly facilitated) rectus capitis posterior minor contributes to the postural dysfunction pattern of forward head posture, which is part of the larger postural dysfunction pattern of upper crossed syndrome.