Occipital belly of occipitofrontalis

  • The occipital belly of the occipitofrontalis (also known as occipitalis, occipital part of occipitofrontalis, latin: venter occipitalis musculi occipitofrontalis) is a paired skeletal muscle of the head. It is a part of the occipitofrontalis muscle and is connected with the frontal belly of this muscle by the aponeurosis of the epicranius.

    Origin

    The occipital belly of the occipitofrontalis originates from the superior nuchal line.

    Insertion

    The occipital belly of the occipitofrontalis inserts into the galea aponeurotica (also known as aponeurosis of the epicranius).

    Action

    Upon contraction the occipital belly of the occipitofrontalis moves the scalp posteriorly.

    Innervation

    The occipital belly of the occipitofrontalis is innervated by the posterior auricular nerve, a branch of the facial nerve (CN VII).