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]]