Trismus is due to infection by______________?

Correct answer: D. Clostridium Tetani

  • A. Staphylococci
  • B. Streptococci
  • C. Diphtheria
  • D. Clostridium Tetani

Explanation

Clostridium tetani produces a neurotoxin that causes sustained muscle rigidity and spasms, with masseter spasm producing the classic lockjaw or trismus. Staphylococci and streptococci may cause infections but do not characteristically cause tetanus.

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