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Obliquus Inferior Capitis Muscle
Muscular System

Obliquus Inferior Capitis Muscle

Musculus obliquus inferior capitis

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Quick Facts

Origin: Spinous process of axis (C2).

Insertion: Transverse process of atlas (C1).

Action: Rotates head.

Innervation: Suboccipital nerve (posterior ramus of first cervical nerve).

Arterial Supply: Vertebral artery and descending branch of occipital artery.

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Origin

The obliquus capitis inferior muscle arises from the spinous process of the axis (second cervical vertebra).

Insertion

The obliquus capitis inferior muscle inserts into the posterior aspect of the transverse process of the atlas (first cervical vertebra).

Actions

The obliquus capitis inferior muscle rotates the head to the same side at the atlantoaxial joints (Standring, 2016).

References

Standring, S. (2016) Gray's Anatomy: The Anatomical Basis of Clinical Practice. Gray's Anatomy Series 41st edn.: Elsevier Limited.

Learn more about this topic from other Elsevier products

Obliquus Capitis Inferior Muscle

ScienceDirect image

The obliquus capitis inferior muscle is identified between the spinous process of C2 and transverse process of C1.

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Complete Anatomy