Muscles of Mastication

Question 1

What develops the muscles of mastication

Answer 1

brachial arch #1

Question 2

what is the inn of the muscles of mastication

Answer 2

branches of CNV3

Question 3

medial pterygoid m- O, I, IN, A

Answer 3

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

Question 4

Lateral pterygoid m (sup + inf head)- O, I, IN ,A(bi,Uni)

Answer 4

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

Question 5

Temporalis- O, I, IN, A

Answer 5

O- temporal fossa
i- cornoid process + ant border of rams
IN- deep temporal n
A- elevate mandible + only m that retracts

Question 6

Masseter m- O (sup + deep), I, IN, A

Answer 6

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