The disc of the tempero mandibular joint moves forward principally by________________?
Correct answer: D. Lateral pterygoid muscle
- A. Condyle
- B. Stylo mandibular ligament
- C. Medial pterygoid muscle
- D. Lateral pterygoid muscle
Explanation
The lateral pterygoid pulls the articular disc and mandibular condyle forwards during protrusion and opening of the mouth. The medial pterygoid mainly elevates and assists protrusion, while the ligaments do not actively move the disc.
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