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Occipitalis muscle

Muscle of the head

Field	Value
Name	Occipitalis muscle
Latin	venter occipitalis musculi occipitofrontalis
Image	Musculus occipitalis.png
Caption	Muscles of the face and neck (occipitalis muscle visible at center right in red)
Origin	Superior nuchal line of the occipital bone and mastoid process of the temporal bone
Insertion	Galea aponeurosis
Action	Moves the scalp back
Blood	Occipital artery
Nerve	Posterior auricular nerve (a branch of the facial nerve)

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.

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.{{cite book

The occipitalis muscle is innervated by the posterior auricular nerve (a branch of the facial nerve) and its function is to move the scalp back. The muscles receives blood from the occipital artery.

Additional image

File:Occipitalis muscle animation small.gif|Position of occipitalis muscle (shown in red).

References

Drake, Richard L.. (2010). "Gray's Anatomy for Students".

Info: Wikipedia Source

This article was imported from Wikipedia and is available under the Creative Commons Attribution-ShareAlike 4.0 License. Content has been adapted to SurfDoc format. Original contributors can be found on the article history page.

muscles-of-the-head-and-neck otorhinolaryngology human-head-and-neck

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