Lock jaw indicates_______________?
Correct answer: B. Spasm of masseter mucle
- A. Ankylosis
- B. Spasm of masseter mucle
- C. Auspitz's sign
- D. Nikolsky's sign
Explanation
Lockjaw, or trismus, results from sustained spasm of the muscles of mastication, particularly the masseter, classically in tetanus. Ankylosis causes mechanical restriction, while Auspitz and Nikolsky signs are unrelated clinical signs.
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