#MUSCLES_OF_MASTICATION...☆

#General rules:-
They include 4 muscles:-
1)-.Masseter m.
2)-Temporalis m.
3)-Med.pterygoid m.
4)-Lat.pterygoid m.

#Origin:-
They arise from the temporal & infratemporal fossae m

#Insertion:-
They all are inserted into the ramus of the mandible.

#N.Supply:-
They all are supplied by the mandibular n.

#Action:-
1)-all of them elevate the mandbile excepet lat.pterygoid which lower it.

2)-all of them protrude the mandible except temporalis which retracts it.

3)-the pterygoid muscles move the mandible from side to side (chewing).






#Butheina...🌸✨
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