dissection 2 muscles of mastication

Question 1

actions of masseter

Answer 1

elevate the mandible

protrude

Question 2

actions of temporalis

Answer 2

elevates mandible

Question 3

where does temporals insete

Answer 3

retromolar fossa
(along coronoid)

Question 4

which mastication muscles has a greater range of contraction

Answer 4

temporals

Question 5

what is the pterygoid venous plexus

what is it connected to

Answer 5

network of veins in infratemporal fossa

cavernous sinus and pharyngeal venous plexus

Question 6

action of lateral pteryhoid

Answer 6

protrude mandible

Question 7

what does the long buccal nerve supply

Answer 7

buccal mucosa

skin over buccal membrane

Question 8

what is the long buccal a branch of

Answer 8

v3

Question 9

what does the inferior alveolar nerve supply and branches

Answer 9

mental nerve branch
supplies chin
incisive branch for canine/incisor teeth
supplies mandibular dentition

Question 10

what does the inferior alveolar artier supply

Answer 10

lower dentition
divides to incisive and mental
before entering mandibular foramen gives off mylohyoud branc

Question 11

where is the major blood supply to the bone of the mandible

Answer 11

incisor arteries (teeth and dental sockets)
branch from inferior alveolar arteries

Question 12

bleeding from gingiva and damage to lower jaw is from

Answer 12

inferior alveolar artery

Question 13

bleeding fromdental sockets is from

Answer 13

incisor branches

Question 14

actions of the medial pterygoid muscel

Answer 14

elevate the mandible

Question 15

what does the mylohyoid nerve supply

Answer 15

mylohyoid

anterior belly of digastric

Question 16

actions of myloyoid and anterior belly of digastric

Answer 16

elevation of the hyoid bone

mylohyoid also elevates floor of mouth

Question 17

what does the lingual nerve supply

Answer 17

general sensation to the posterior 2/3 tongue
floor of mouth
gingiva, lingual side of mandibular teeth

Question 18

what is prone to damage upon extraction of lower 8s

Answer 18

lingual nerve and IAN

Question 19

effect of damage to lingual nerve

Answer 19

lack of sensation to floor of mouth, posterior 2/3 tongue, lingual gingiva
also loss of taste as chords tympani fibres have fused

Question 20

where are IAN and lingual nerves accessible for anathesia

Answer 20

ramus of mandible

Question 21

function of the ligaments and capsule of the TMJ

Answer 21

limit movement, provide proprioception

capsule seals joint space

Question 22

what is the lateral pterygoid muscle attached to

Answer 22

articular disk

Question 23

function of the articular disk

Answer 23

pack the joint to provide stability

Question 24

what is the TMJ disk made of

Answer 24

fibrocartilage

Question 25

what are the other ligaments of the TMJ

Answer 25

stylomandibular | sphenomandibualr

Question 26

what foramen is the lingual nerve related to

Answer 26

mandibular formament

Question 27

effect of calcified sphenomandubular ligament on inferior alveolar block

Answer 27

prevents analeptic diffusing

Question 28

branches of the maxillary artery

Answer 28

middle meningeal artery inferior alveolar artery superior alveolar arteries

Question 29

effect of IAN damage

Answer 29

loss of sensation to lower teeth | lip and chin (mental)

Question 30

muscles that arise from the styloid process

Answer 30

styloglossus stylopharyngeus stylohyoid

Question 31

nerve supply to stylohyoid

Answer 31

facial nerve

Question 32

nerve supply to styloglossus

Answer 32

hypglossal

Question 33

nerve supply to stylopharyngeis

Answer 33

glossopharyngeal

Question 34

supra hyoid muscels

Answer 34

digastric stylohyoid geniohyoid mylohyoid

Question 35

where can the zygomatic arch move if fractured

Answer 35

inferior displacement due to master

Question 36

most common sites for mandubalr fractures

Answer 36

body at the level of canine teeth junctional body and ramus condylar neck

Question 37

what prevents the TMJ dislocating laterally

Answer 37

lateral ligamentn

Question 38

what prevents the TMJ disolating medially

Answer 38

bone

Question 39

what prevents the TMJ dislocating posteiroally

Answer 39

bone

Question 40

which way is theTMJ most likely to dislocate

Answer 40

anteriorly

Question 41

why is it important to use an aspirating syringe when doing an IAN block

Answer 41

check you are not injecting into a blood vessle

Question 42

checking for nerves that may have been damaged on extraction of lower 8s

Answer 42

lingual - touch test | chords tympani - taste test