Rectus capitis posterior minor

  • The rectus capitis posterior minor (also rectus capitis posterior minor muscle, latin: musculus rectus capitis posterior minor) is one of the suboccipital muscles that acts at the atlanto-occipital joint.

    The rectus capitis posterior minor originates from the tubercle on posterior arch of atlas (C1) and inserts on the external surface of the occipital bone - on the medial part of the inferior nuchal line and between the inferior nuchal line and the foramen magnum.

    The main function provided by the rectus capitis posterior minor is extension of the head.

    The rectus capitis posterior minor is innervated by the dorsal ramus of the 1st cervical spinal nerve (C1), also known as the suboccipital nerve.