TMJ Flashcards
(15 cards)
what type of joint is the tmj joint
synovial
what happens to tmj during wide opening
hinge and slide of the condyle
what covers the condyle
glenoid/ mandibular fossa
what does the condyle slide into
articular eminence
why is the clicking loud for the patient
tmj is next to the external auditory meatus
the 2 layers of the joint capsule
outer- fibrous
inner- synovial membrane
what does the lateral ligament do
restricts movement posterior, lateral and inferior movement
3 accessory ligaments
stylomandibular (styloid)
pterygomandibular (near pterygoid)
sphenomandibilar (middle of them^)
where is the articular disc
next to the condyle , before lateral ligament
dense fibrous
articular disc is split into main 2
upper - slide
lower - hinge
5 zones of the articular disc
posterior extension (upper/lower)
anterior extension (continuous lateral pterygoid)
posterior band
intermediate band
anterior band
innervation of tmj
cnv3
blood supply of tmj
maxillary artery
free and complex nerve endings
free- pain- nociecpetion
complex- awareness- proprioception
anterior disc displacement with reduction and without reduction
with-back to where it was
without- too wide limited movement
