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217:. This is an extremely complex joint which permits movement in all planes. The muscles of mastication originate on the skull and insert into the mandible, thereby allowing for jaw movements during contraction.
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Betts, J Gordon; Desaix, Peter; Johnson, Eddie; Johnson, Jody E; Korol, Oksana; Kruse, Dean; Poe, Brandon; Wise, James; Womble, Mark D; Young, Kelly A (June 28, 2023).
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146:(closing the jaw) and move it forward/backward and laterally, facilitating biting and chewing. Other muscles are responsible for opening the jaw, namely the
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While these four muscles are the primary participants in mastication, other muscles help with the process, such as those of the tongue and the cheeks.
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Depresses?, protracts, laterally moves mandible (opens mouth?; pushes lower jaw out/forward; moves lower jaw side to side)
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Elevates, protracts, laterally moves mandible (closes mouth; pushes lower jaw out/forward; moves lower jaw side-to-side)
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Each of these primary muscles of mastication is paired, with each side of the mandible possessing one of the four.
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The mandible is the only bone that moves during mastication and other activities, such as talking.
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is considered a part of the temporalis by some sources, and a distinct muscle by others)
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Elevates and retracts mandible (closes mouth; pulls lower jaw in/backward)
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Embryologically, the muscles of mastication are all derived from the first
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317:Elevates mandible (closes mouth and aids chewing)
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33:Mandibular division of the trigeminal nerve.
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178:(composed of the superficial and deep head)
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555:at the U.S. National Library of Medicine
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354:Mandible (coronoid process and ramus)
895:Levator labii superioris alaeque nasi
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209:, or lower jaw, is connected to the
388:Mandible; temporo-mandibular joint
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521:10.1016/b978-1-4377-0272-9.50014-0
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425:Mandible (medial ramus below the
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442:Temporomandibular joint disorder
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232:, which are innervated by the
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1146:Muscles of the head and neck
851:Levator palpebrae superioris
663:Levator palpebrae superioris
276:muscles of facial expression
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980:Depressor labii inferioris
122:Anatomical terms of muscle
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228:Unlike most of the other
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922:Levator labii superioris
557:Medical Subject Headings
507:Hansen, John T. (2010),
484:Anatomy & Physiology
16:Muscles that aid chewing
408:lateral pterygoid plate
382:lateral pterygoid plate
215:temporomandibular joint
140:muscles of mastication
22:Muscles of mastication
1111:Inferior longitudinal
1106:Superior longitudinal
975:Depressor anguli oris
846:Corrugator supercilii
436:Clinical significance
213:of the skull via the
890:Depressor septi nasi
839:depressor supercilii
475:available under the
406:: medial surface of
67:musculi masticatorii
917:Levator anguli oris
553:Masticatory+Muscles
138:The four classical
702:sphenomandibularis
427:mandibular foramen
187:sphenomandibularis
162:may play a role).
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990:Transversus menti
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817:Occipitofrontalis
791:Temporoparietalis
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384:of sphenoid bone
361:Lateral pterygoid
250:mandibular branch
200:lateral pterygoid
170:The muscles are:
160:lateral pterygoid
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418:: tuberosity of
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395:Medial pterygoid
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194:medial pterygoid
128:edit on Wikidata
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142:elevate the
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91:A04.1.04.001
66:
1008:Soft palate
927:Zygomaticus
822:occipitalis
680:Masticatory
611:Extraocular
263:Development
224:Innervation
56:Identifiers
1116:Transverse
1073:Hyoglossus
962:Buccinator
731:masseteric
697:Temporalis
536:2024-01-08
453:References
341:Temporalis
326:Mandible (
304:Insertion
183:temporalis
148:geniohyoid
1099:Intrinsic
1061:Extrinsic
827:frontalis
784:posterior
769:Auricular
709:Pterygoid
477:CC BY 4.0
404:Deep head
298:Movement
166:Structure
156:digastric
152:mylohyoid
1140:Category
1121:Vertical
985:Mentalis
957:Risorius
873:Procerus
779:superior
774:anterior
736:temporal
692:Masseter
646:inferior
641:superior
629:superior
624:inferior
479:license.
311:Masseter
282:Function
207:mandible
176:masseter
144:mandible
1026:levator
878:Nasalis
714:lateral
656:lateral
619:Oblique
601:of the
599:Muscles
447:Bruxism
420:maxilla
79:D008410
39:Details
1053:Tongue
1021:tensor
805:eyelid
752:Facial
726:Fascia
719:medial
651:medial
636:Rectus
559:(MeSH)
527:
490:
301:Origin
238:CN VII
154:, and
937:minor
932:major
905:Mouth
801:Scalp
332:ramus
252:, or
185:(the
126:[
115:74060
62:Latin
45:Nerve
865:Nose
603:head
525:ISBN
488:ISBN
473:text
410:and
330:and
274:The
246:CN V
244:(or
236:(or
198:The
192:The
181:The
174:The
103:2104
86:TA98
74:MeSH
761:Ear
517:doi
110:FMA
98:TA2
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591:e
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577:v
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256:3
254:V
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