1. What is the only joint in the head?
    The temporomandibular joint
  2. What is the blood supply for the TMJ?
    The EXTERNAL carotid artery
  3. Which cranial nerve is associated with the TMJ?
    V - trigeminal nerve, mandibular division
  4. What does crepitus mean?
    continuous noise during movement of joint
  5. What completely encloses the TMJ?
    The joint capsule
  6. What is the articular eminence?
    a smooth round ridge positioned anterior to othe articular fossa
  7. What does the condyle articulate against?
    the artcular eminence
  8. What is the depression of the temporal bone located posterior to the articular eminence called?
    Articular/Mandibular/Glenoid FOSSA
  9. Disc of the TMJ is called?
    Meniscus of joint
  10. What is the disc or meniscus attached to?
    The condyle of the mandible
  11. What does synovial fluid do?
    • allows nourishment and lubrication
    • acts as a cushion for the joints
  12. Temporomandibular joint ligament is located where?
    • located on the lateral side of each joint
    • connects the condyle to the temporal bone
  13. Where is the sphenomandibular ligament located?
    MEDIAL side of the mandible
  14. Where is the Stylomandibular ligament located?
    runs from the styloid process of the temporal bone to the angle of the mandible
  15. Which are the 3 TMJ ligaments?
    • 1. temporomandibular joint ligament
    • 2. sphenomandibular ligament
    • 3. stylomandibular ligament
  16. Which are the 2 TMJ movements?
    • Hinge or swinging
    • Gliding
  17. Where does the hinge movement occur?
    lower joint cavity between disc and condyle as the mouth opens; raising and lowering jaw
  18. Gliding occurs where?
    UPPER joint cavity between disc and temporal bone; protrusion and retraction
  19. What is TMJ?
    The articulation between the temporal bone and mandible
  20. Subluxation?
    a locked TMJ
  21. find fossa, eminence, meniscus, capsule
Card Set
basic anatomy of the TMJ