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Mastication muscles

Muscles derivates of the first visceral arch

MuscleOriginInsertionFunction
M. temporalis Planum temporale, fascia temporalis Proc. corocoideus mandibulae Elevation of the mandible; posterior fibres pulls the mandible backward
M. Masseter Arcus zygomaticus Tuberositas masseterica mandibulae Elevation of the mandible
M. Pterygoideus lateralis Facies infratemporalis alae majores ossis sphenoidalis, lamina lateralis proc. pterygoidei Fovea pterygoidea mandibulae Bilateral contraction: Push mandible forward; Unilateral contraction: Push mandible laterally
M. Pterygoideus medialis Fossa pterygoidea ossis sphenoidalis Tuberositas pterygoidea mandibulae (inside) Elevation of the mandible; Bilateral contraction: Push mandible forward; Unilateral contraction: Push mandible laterally
Created by: gustafb82
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