Obliquus capitis inferior

  • The obliquus capitis inferior (also obliquus capitis inferior muscle, latin: musculus obliquus capitis inferior) is a suboccipital muscle that acts at the atlanto-axial joint.

    The obliquus capitis inferior originates from the spinous process of the axis (C2) and inserts onto the transverse process of the atlas (C1).

    The main function of the obliquus capitis inferior is rotation of the head and neck.

    The obliquus capitis inferior is innervated by the suboccipital nerve - the dorsal ramus of the 1st cervical spinal nerve (C1).