1-9 Flashcards
(19 cards)
1:
Capsule or temporalmandibular joint
2:
Lateral temporalmandibular ligament
3:
Sphenomandibular ligament
4:
Stylomandibular ligament
5:
Mandibular fossa
6:
Articular disc
7:
Articular tubercle
8:
Capsule of temporalmandibular joint
What type of joint is the TMJ?
Synovial
The temporal joint’s two cavities are separated by
Articular disc of fibrocartilage
The Articular disc of fibrocartilage divides the TMJ into
upper joint (upper compartment) and lower joint (lower compartment)
The upper compartment combines uniaxial gliding, for forward gliding ___________, and backwards gliding ___________, and side to side motion
Protrusion
Retraction
The lower joint, below the Articular disc, is a uniaxial hinge joint for closing (__________), and opening (_________), of the jaw
Elevation
Depression
The TMJ contains an Articular capsule and is reinforced by the
Lateral temporalmandibular ligament and sphenomandibular ligament
The TMJ is both a ________ and ________ joint
Hinge and sliding
What percentage of the population is affected by TMJ issues?
25%
What is bruxism?
Grinding or clenching of teeth
Is TMJ more common in men or women?
Women
TMJ problems can be caused by
Trauma, arthritis, infection, bruxism, or displacement of Articular disc