On opening the mouth , if the jaw deviates to the right side, it indicates the paralysis of__________?
Correct answer: B. Right lateral pterygoid
- A. Left lateral pterygoid
- B. Right lateral pterygoid
- C. Right medial pterygoid
- D. Left medial pterygoid
Explanation
The lateral pterygoid pulls its condyle forward during opening; if one side is paralysed, the functioning opposite muscle produces deviation toward the paralysed side. Deviation to the right therefore indicates right lateral pterygoid paralysis.
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