Question 319 · LDEK · Mandibular movements and articulators
Indicate the false statement:
- A. when the mandible moves towards the working side, this results in a contraction of the contralateral lateral pterygoid muscle.
- B. lateral movement may increase the mylohyoid muscle tone.
- C. the head of the mandible on the working side revolves around the vertical axis and the head of the opposite side moves forwards onto the articular tubercle.
- D. the tone of the lower head of the lateral pterygoid muscle tension influences the anterior part of disc, protecting it against posteriorotation on the condyle which moves protrusively.
- E. on the working side, the lateral part of the mandibular condyle moves laterally and backward, which stretches the lateral ligament of the disc.
Hint
Recall which head of the lateral pterygoid attaches to the disc and which inserts into the condylar neck.
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