Anatomy Flashcards
1
Q
TMJ Anatomy
A
2
Q
What type of joint is the TMJ?
A
ginglymoarthrodial
superior part is arthrodial (translation)
inferior part is ginglymoid (rotation)
3
Q
Normal saliva production
A
stimluated: 1-2 mL/min
unstimulated: 0.3-0.4 mL/min
4
Q
How do you determine salivary flow rate?
A
1) intraoral inspection: dry/sticky? ropey?
2) empirical: drooling in a cup (unstimulated), chewing parrafin (stimulated)
5
Q
Where does unstimulated saliva mostly come from?
A
submandibular
(mixed serous-mucous)
6
Q
Where does stimluated salivary flow mostly come from?
A
parotid
(mostly serous)
7
Q
What muscles are involved in protrusion of the mandible?
A
- lateral pterygoid (inferior head)
- medial pterygoid
to a lesser degree:
masseter (superficial fibers)
temporalis
8
Q
What muscles are involved in laterotrusion?
A
- lateral pterygoid
- medial pterygoid
both on the contralateral side
9
Q
A
