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Origin and insertion of jaw

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kodopumi's version from 2015-12-09 19:30

Origins Insertions And Actions of Jaw Muscles

 

MuscleOriginInsertionAction
Masseteron zygomatic archon lateral ramus of madibleelevates mandible (closes the mouth) and works with the temporalis
Temporalison temporal boneon coronoid process of ramus of mandibleelevates mandible (closes mouth) works with the masseter
Medial Pterygoidpterygoid process of the sphenoid boneon medial ramus of mandibleelevates mandible and moves it laterally
Lateral Pterygoidpterygoid process of the sphenoid boneon condylar process of mandibleprotracts the mandible
Digastric (posterior belly)mastoid process of temporal boneon hyoid via ligimental loopelevates hyoid when madible is stationary, lowers mandible (opens mouth) when mandible isnt stationary
Digastric (anterior belly)lower margin of the mandibleon hyoid via ligimental loopelevates hyoid when madible is stationary, lowers mandible (opens mouth) when mandible isnt stationary
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