TMJ

Card Set Information

Author:
lyncho87
ID:
212323
Filename:
TMJ
Updated:
2013-04-09 00:27:40
Tags:
NUPT
Folders:

Description:
NUPT TMJ KIN
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  1. Elevation
    • Translation in a posterior-superior direction followed by anterior rotation of the condyle on the disc; anterior motion of the disc if facilitated by the superior fibers of the lateral pterygoid to prevent impingement in the posterior compartment. 
    • Muscles: Rotation- suprahyoids/infrahyoids, gravity and relaxation
    • Translation- lateral pterygoid inferior head and suprahyoids
  2. Depression
    First- posterior rotation of the condyle on the disc in the inferior joint. Then there is a translation in the anterior-inferior direction of the disc and condlyle in the superior joint. Retrolaminae disc help maintain stability. Collateral ligaments are taught to hold disc in place.

    Temporalis, med pterygoid, superior head of lateral pterygoid
  3. Protrusion
    Anterior and inferior translation

    Lateral pterygoid, some med pterygoid and masseter if forcible
  4. Retraction
    posterior and superior translation in the upper joint

    Temporalis and suprahyoids
  5. Lateral deviation
    Same side spin and opposite side anterior/inferior translation

    Opposite med and lat pterygoid and same side temporalis and masseter

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