Muscles of Mastication Flashcards
What develops the muscles of mastication
brachial arch #1
what is the inn of the muscles of mastication
branches of CNV3
medial pterygoid m- O, I, IN, A
O-
super- maxillary tub
deep- lat pterygoid plate + prymidal process
I- medial surface of ramus and angle of mandible
IN- n to medial pterygoid
A- elevates+ protracts mandible
Lateral pterygoid m (sup + inf head)- O, I, IN ,A(bi,Uni)
O-
sup- infratemporal surface
inf- lat surface of lat pterygoid plate
I-
sup- articular disc+ fibrous capsul
inf- Pterygoid fovea on neck of mandible
IN- n to lat pterygoid
A- bi- protracts, depresses
uni- swings jaw contralat
Temporalis- O, I, IN, A
O- temporal fossa
i- cornoid process + ant border of rams
IN- deep temporal n
A- elevate mandible + only m that retracts
Masseter m- O (sup + deep), I, IN, A
O- sup- ant 2/3 inf and med of zygomatic arch
deep- Post 1/3 inf border zygomatic arch
I- Masseteric tuberosiyu + ext suface of madible
IN- massenteric n
A- elevates mandible, aids in protractin