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Temporalis muscle Totally Explained
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Everything about Temporalis totally explainedBold text== Headline text ==
The temporalis muscle is one of the muscles of mastication.
Structure
It arises from the temporal fossa and the deep part of temporal fascia. It passes medial to the zygomatic arch and inserts onto the coronoid process of the mandible.
The temporalis muscle is covered by the temporal fascia, also known as the temporal aponeurosis.
The muscle are accessible on the temples, and can be seen and felt contracting while the jaw is clenching and unclenched.
Innervation
As with the other muscles of mastication, control of the temporalis muscle comes from the third (mandibular) branch of the trigeminal nerve. Specifically, the temporalis is innervated by the deep temporal nerves.
Actions
Contraction of the temporalis muscle elevates the mandible. The somewhat horizontal fibers of the posterior part of the muscle retract the mandible.
Additional images
Image:Illu head neck muscle.jpg|Muscles of head and neck
Image:Gray134.png|Frontal bone. Outer surface.
Image:Gray146.png|Sphenoid bone. Anterior and inferior surfaces.
Image:Gray176.png|Mandible. Outer surface. Side view.
Image:Gray177.png|Mandible. Inner surface. Side view.
Image:Gray781.png|Mandibular division of the trifacial nerve.
Further Information
Get more info on 'Temporalis'.
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