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
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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
The articular disk (of TMJ) is closely attached to the surrounding articular capsule, dividing the joint space into the superior and the inferior joint cavities. It has the feature that
A. it is directly attached to the condylar process
B. the superior joint cavity is large and loose, called the gliding joint
C. the superior and the inferior joint cavities are connected
D. the superior joint cavity is small and tight, called the hinge joint
E. none of the above
Which of the following descriptions about the functional anatomical features of TMJ is incorrect?
A. It is a joint complex with both the rotational movement and the translational movement
B. It has multiple axes of movement
C. It is a left-right linkage joint
D. It has close relationship with the occlusion
E. It is a simple joint with only translational movement
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