View source for Temporalis muscle

{{Muscle infobox |
  Name         = Temporalis muscle |
  Latin        = musculus temporalis |
  GraySubject  = 109 |
  GrayPage     = 386 |
  Image        = Gray382.png  |
  Caption      = The [[Temporalis]]; the [[zygomatic arch]] and [[Masseter]] have been removed. |
  Origin       = [[temporal lines]] on the [[parietal bone]] of the skull. |
  Insertion    = [[Coronoid process of the mandible|coronoid process]] of the [[mandible]].  |
  Blood        = [[deep temporal arteries|deep temporal]] |
  Nerve        = third branch ([[mandibular nerve]]) of the [[trigeminal nerve]] |
  Action       = [[Elevation (kinesiology)|elevation]] and [[Retraction (kinesiology)|retraction]] of [[mandible]] |
  Antagonist   = [[Platysma muscle]] |
  MeshName     = |
  MeshNumber   = |
  DorlandsPre  = m_22 |
  DorlandsSuf  = 12551069  |
}}
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==Overview==
The '''temporalis muscle''' is one of the [[Mastication#Muscles of mastication|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 can be felt if one places their fingers on their temples (on the sides of their head, just behind the [[eyebrow]]s), while clenching and unclenching their teeth.

==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==
<gallery>
 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.
</gallery>

==External links==
* {{MuscleLoyola|temporalis}}
* {{SUNYAnatomyLabs|27|04|01|00}} - "Infratemporal Fossa: The Temporalis Muscle"

{{Muscles of head}}
{{SIB}}

[[Category:Muscles of the head and neck]]

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