TMJ Flashcards
caudal glide increases
depression
anterior glide increases
protrusion & depression
PA mob increase
protrusion & depression
AP mob increases
retrusion
ventrocaudal translation increases
depression
caudal retrusive increases
retrusion
what muscles elevate the jaw
masetter, temporalis
which muscle does lateral exursion & protrusion?
lateral pteryogoid
medial pterygoig
True Torticollis presents as?
ipsilateral side bend with contralateral rotation
(tight SCM); more common in infants
discogenic/facet/acute/wry neck torticollis presents as
lateral bend and rotation away from involved side with slight flexion;
doing all these motion to involved side will cause pain cause compression on facet or disc.
extension most limited
nucleus pulposa properties
~80% water and rest type II collagen
the outer layer of annulus fibrosis is type ___ collagen while the inside layer is type __ collagen
I; II (more flexible)
Canadian C spin rules are highly sensitive; screen if need for radiograph, if negative can rule it out.
function of tectoral membrane
prevents excessive flexion from occiput to C2 and turns into posterior lig.
anterior longitudinal lig function
limites extension
posterior longi. lig function
limits flexion & reinforces back of annulus
alar ligs
limit head rotation & side bend on contralateral side
attach to the dens bilaterally and insert on the base of the skull.
lig flavum
connects laminae
assists spine to return to neutral from flexion and relaxes during extensions
lig nuchae
attachment site for trap & spleniu capitis
from occiput to C7
prevents excessive flexion
transverse lig
anchors dens in place and provides stability
side bend to L side at OA joint (C0-C1)
ipsilateral side: MIA
medial, inferior, anterior
contralateral side LPS
lateral, posterior, superior
C1 & C2 vertebra (convex on convex)
rotating to the R
MOST ROTATION
rotating to the R
the R inferior facet of C1 moves posterior on C2
The L inferior facet of C1 moves anterior on C2
rotation at C2-C7
rotating to the R:
inferior facet on the L has to glide sup and anterior
inferior facet on R has to glide post and inf.
C1 and C2 will rotate in oppsoite direction during side bending to keep ur head looking straight while and lower cervical spine, those vertebra rotate slightly to to same direction of bend
