When doing the small jaw opening movement, the descending distance of the mandible is about
A. 0.5mm
B. 1.0mm
C. 1.5mm
D. 2.0mm
E. 2.5mm
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Which of the following lateral ligaments is NOT on the TMJ?
A. the temporomandibular ligament
B. the sphenomandibular ligaments
C. the disco-malleolar ligament
D. the stylomandibular ligament
E. all of the above
Which structure of the TMJ disk is composed of the collagenous fiber and thick elastic fiber?
A. the anterior temporal attachment
B. the anterior mandibular attachment
C. the posterior temporal attachment
D. the posterior mandibular attachment
E. the superior head of the lateral pterygoid muscleattachment
The thickness of the bone plate between the top of the articular fossa and the middle cranial fossa is about
A. 0.5mm
B. 1.2mm
C. 1.8mm
D. 2.0mm
E. 5.0mm
The part of the articular disk devoid of any blood vessels and nerve fibers is
A. the anterior mandibular attachment
B. the anterior band
C. the intermediate band
D. the posterior band
E. the bilaminar zone
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