Muscles of mastication Flashcards
temporalis o/i
O–Temporal fossa
I:anterior mandibular ramus and coronoid process
temporalis movement
elevates and retracts mandible
involved in excursion
Masseter o/i
o: zygomatic arch
i: lateral side of mandibular ramus
masseter movement
elevates and PRotracts mandible m
invovlved in exrusion
lateral pterygoid o/i
O: lateral side of lateral pterygoid plate and greater wing of sphenoid
I: Condylar process of mandible and articular disk
lateral pterygoid movement
depresses and protracts mandible
involved in excursion
medial pterygoid o/i
o: medial side of lateral peterygoid plate and tuberoisity of maxialla
I: medial surface of mandible
medial pterygoid movement
ELEVATES and protracts mandible
involved in excursion