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Botulism caused by Clostridium botulinum affects the

1. intestine
2. neuromuscular junction
3. spleen
4. lymph glands

Correct answer: neuromuscular junction

Solution

Clostridium botulinum produces a neurotoxin that interferes with acetylcholine release, so muscles cannot receive the signal to contract. This action occurs at the neuromuscular junction.

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