Occipitalis muscle

The occipitalis muscle (occipital belly) is a muscle which covers parts of the skull. Some sources consider the occipital muscle to be a distinct muscle. However, Terminologia Anatomica currently classifies it as part of the occipitofrontalis muscle along with the frontalis muscle.

Occipitalis muscle
Muscles of the face and neck (occipitalis muscle visible at center right in red)
Details
OriginSuperior nuchal line of the occipital bone and mastoid process of the temporal bone
InsertionGalea aponeurosis
ArteryOccipital artery
NervePosterior auricular nerve (facial nerve)
ActionsMoves the scalp back
Identifiers
LatinVenter occipitalis musculi occipitofrontalis
TAA04.1.03.005
FMA46758
Anatomical terms of muscle

The occipitalis muscle is thin and quadrilateral in form. It arises from tendinous fibers from the lateral two-thirds of the superior nuchal line of the occipital bone and from the mastoid process of the temporal and ends in the epicranial aponeurosis.[1]

The occipitalis muscle is innervated by the facial nerve and its function is to move the scalp back.[2] The muscles receives blood from the occipital artery.

Additional image
  • Position of occipitalis muscle (shown in red).
gollark: If it just got shuffled forward, though, eggs around taken eggs would move, which doesn't happen.
gollark: So it doesn't actually go forward but a random other one enters?
gollark: Also, yay, I caught an Aeon.
gollark: So when you take an egg the queue goes forward a bit?
gollark: That makes a lot of sense, actually. I thought 5-minute ones added eggs to the front of the queue or something.

See also

References

This article incorporates text in the public domain from page 379 of the 20th edition of Gray's Anatomy (1918)

  1. Stone, Robert & Judith (2000). Atlas of skeletal muscles. McGraw-Hill. p. 26. ISBN 978-0-07-290332-4.
  2. Drake, Richard L.; Vogl, A. Wayne; Mitchell, Adam W. M. (2010). Gray's Anatomy for Students (2nd ed.). p. 857. ISBN 978-0-443-06952-9.
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