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The occipitalis muscle has two muscle bellies separated in the midline by the aponeurosis. Each occipital belly arises from the lateral two-thirds of the highest nuchal line of the occipital bone and the mastoid process of the temporal bone. It extends forward to become continuous with the galea aponeurotica. It is a part of the occipitofrontalis muscle along with the frontalis muscle. The posterior auricular branch of the facial nerve innervates the muscle. Its function is to move the scalp back.

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Posterior Neck and Occipital Regions

  • 章节

  • 发表日期：

    2025年

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  • Nobutaka Yoshioka,
  • Albert L. Rhoton, Jr.,
  • Juan C. Fernandez-Miranda

摘要

The occipitalis muscle has two muscle bellies separated in the midline by the aponeurosis. Each occipital belly arises from the lateral two-thirds of the highest nuchal line of the occipital bone and the mastoid process of the temporal bone. It extends forward to become continuous with the galea aponeurotica. It is a part of the occipitofrontalis muscle along with the frontalis muscle. The posterior auricular branch of the facial nerve innervates the muscle. Its function is to move the scalp back.