Question 122 · LDEK · Mandibular movements and articulators
Indicate the true statement concerning mandibular movements in the temporomandibular joint:
- A. during an opening mandibular movement, in the upper joint compartment a rotary movement occurs.
- B. during a closing mandibular movement, in the upper and lower joint compartments a rotary movement occurs.
- C. during an opening and closing mandibular movement, in the lower joint compartment a sliding movement occurs.
- D. during an opening mandibular movement, in the upper joint compartment a movement around the vertical axis occurs.
- E. during an opening and closing mandibular movement, in the upper joint compartment a sliding movement occurs, while in the lower joint compartment a rotary movement occurs.
Hint
Think of the TMJ as two compartments: which one works as the condyle-disc hinge and which lets the condyle-disc complex travel along the eminence?
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