temporomamdibular joint Flashcards
1
Q
what type of joint is the temporomandibular joint?
A
a synovial joint
2
Q
what surrounds the TMJ?
A
a fibrous capsule for support
3
Q
where does the head of the mandible sit?
A
in the mandibular fossa
4
Q
what type of movements can occur between the head of the mandible and the mandibular fossa?
A
simple hinge movements
5
Q
what happens to permit the month to open more fully?
A
the head of the mandible is pulled forwards and towards the articular tubercle and by the lateral pterygoid
6
Q
what muscle fibres permit closing of the mouth?
A
the posterior fibres of frontalis
7
Q
what muscles are used to force the mandible down?
A
suprahyoid muscles
