TMJ

Card Set Information

Author:
jpowell22
ID:
145937
Filename:
TMJ
Updated:
2012-04-05 21:33:03
Tags:
functional anatomy
Folders:

Description:
tempromandibular joint
Show Answers:

Home > Flashcards > Print Preview

The flashcards below were created by user jpowell22 on FreezingBlue Flashcards. What would you like to do?


  1. What type of joint is the TMJ and what does it articulate with?
    synovial joint (hinge-like, but not true hinge bc it allows some gliding)

    • mandible articulates with the temporal bone of the cranium
    • (ant. to ear and at the posterior superior end of jaw)
  2. What is the inferior aspect of the TMJ composed of?
    condyle (head) of the mandible
  3. What are the 5 mandibular mvmts?
    • elevation
    • depression
    • protraction
    • retraction
    • lateral deviation
  4. What 3 things is the superior aspect of the TMJ composed of?
    • articular eminence (tubercle)
    • mandibular fossa (articular)
    • post glenoid spine (tubercle)

    *just ant. to ext. auditory meatus
  5. What is located inbetwen the inf. and sup. aspects?
    fibrocartilaginous articular disc
  6. What are the 3 sections of the fibrocartilaginous articular disc?
    • upper jt. space
    • lower jt. space
    • articular disc (the actual disc itself)
  7. The TMJ is involved with what functions?
    • talking
    • chewing
    • biting
    • swallowing
    • yawning
  8. What are the 4 muscles of the TMJ?
    • temporalis
    • masseter
    • lateral pterygoid
    • medial pterygoid
  9. What is the extensive, fan-shaped muscle thats very poweful masticator muscle, and can be easily seen and felt during hte closure of the mandible?
    temporalis
  10. What is the OIAN of the temporalis?
    • O-temporal fossa
    • I-coronoid process and ramus of manible
    • A- bilat.:elevation, retraction... unilat.:ipsilateral lateral deviation
    • N- trigeminal nerve (5)
  11. What muscle covers the lateral aspect of the jaw and you can feel by placing fingers on your cheeks and clenching jaw (proximal to skin)?
    masseter
  12. What is the OIAN of the masseter?
    • O- zygomatic arch of temporal bone and zygomatic process of maxilla
    • I- angle of ramus and coronoid process of mandible
    • A- bilat.:elevation, unilat.:ipsilateral lateral deviation
    • N- trigeminal nerve (5)
  13. What are the muscles that have 2 heads of origin?
    • lateral pterygoid
    • medial pterygoid
  14. What is the OIAN of the lateral pterygoid?
    • O- lateral pterygoid plate and greater wing of sphenoid
    • I- mandibular condyle and articular disc
    • A- bilat.: depression, protrusion, unilat.: contralateral lateral deviation
    • N- trigeminal nerve (5)
  15. What is the OIAN of the medial pterygoid?
    • O- lateral pterygoid plate of sphenoid bone and tuberosity of maxilla
    • I- ramus and angle of mandible
    • A- bilat.: elevation, protraction, unilat.: contralateral lateral deviation
    • N- trigeminal nerve (5)

What would you like to do?

Home > Flashcards > Print Preview