TMJ Flashcards
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
