Temporalis muscle
394291
217979334
2008-06-08T16:34:21Z
Korg
263660
rm editing experiments
{{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 |
}}
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 are accessible on the [[Temple (anatomy)|temples]], and can be seen and felt [[Muscle contraction|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==
<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|temp}}
* {{SUNYAnatomyLabs|27|04|01|00}} - "Infratemporal Fossa: The Temporalis Muscle"
{{Muscles of head}}
[[Category:Muscles of the head and neck]]
{{muscle-stub}}
[[ar:عضلة صدغية]]
[[de:Musculus temporalis]]
[[es:Temporal (músculo)]]
[[fr:Muscle temporal]]
[[it:Muscolo temporale]]
[[hu:Halántékizom]]
[[nl:Musculus temporalis]]
[[ja:側頭筋]]
[[pl:Mięsień skroniowy]]
[[sr:Слепоочни мишић]]
[[sh:Slepoočni mišić]]
[[sl:Senčna mišica]]
[[fi:Ohimolihas]]
[[sv:Temporalis]]