embryology

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what are the five parts of the TMJ
- articular eminence
- articular fossa
- condyle
- joint capsule
- disc of the joint
what is the anterior piece of bone in front of the articular fossa?

articular eminence
what bone is the articular eminence a part of?

temporal bone
what is the space in the temporal bone where the condyle sits?

articular fossa
what is the process off the mandible that articulates with the temporal bone

condyle
what completely encloses the TMJ?

joint capsule
what are the two layers of the joint capsule
- fibrous exterior
- synovial membrane
what is the purpose of the fibrous exterior of the joint capsule?

gives support
what is the synovial membrane layer of the joint capsule?

inner layer of connective tissue. has nerves and blood vessels that supply the joint. it secretes synovial fluid that helps to lubricate the joint
what secretes the synovial fluid in the joint capsule?

synovial membrane
what is the inner layer of the joint capsule?

synovial membrane
where are the nerves and blood vessles that supply the joint located?

synovial membrane
which part of the joint capsule is connective tissue?

synovial membrane
which part of the TMJ is fibrous connective tissue?

disc of the joint
what sits between the condyle and the articular fossa

disc of the joint
the disc of the joint completely divides the joint into two sections called what?

synovial cavities
the synovial cavities completely ______ the joint into _____ _____
- divides
- two sections
what can make the disc of the joint thin, making jaw movement uncomfortable

age
movement of the joint requires both ____ and ____ to fully open the mouth

gliding and rotation
what is the 1st movement made with the TMJ when opening the mouth?

rotating
what is the 2nd move of the TMJ when opening the mouth?

gliding
what are two disorders of the TMJ?
- subluxation
- temporomandibular disorder (TMD)
what is it called when the head of the condyle moves too far anteriorly and gets stuck past the articular eminence?

subluxation
what is the treatment for subluxation

relax the muscles with time or medication and carefully move the mandible downward and back
what are 5 symptoms of TMD?
- chronic joint tenderness
- painful muscle spasms
- limited or deviated opening
- headaches
- locking open or close
what 4 ways to treat TMD?
- relaxation therapy
- muscular exercises
- nightguards
- ortho to correct occlusal problems

Author

sweetpea281

50883

Card Set

embryology

Description

temporomandibular joint

Updated

2010-11-21T18:04:34Z

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