Clostridium tetani produce a toxin . It affects

Options

A. jaw bones
B. involuntary muscles
C. voluntary muscles
D. both voluntary and involuntary muscles

Answer

**Step-by-Step Solution:**

1. **Identify the Bacteria and Toxin**: The question refers to Clostridium tetani, which is a bacterium that produces a toxin known as tetanospasmin.

2. **Understand the Disease**: Clostridium tetani is responsible for causing tetanus, also known as lockjaw. This is a bacterial infection that leads to muscle stiffness and spasms.

3. **Mode of Entry**: The bacteria typically enter the body through breaks in the skin, such as cuts or puncture wounds, often from contaminated soil or objects.

4. **Effect of the Toxin**: The toxin produced by Clostridium tetani interferes with the normal functioning of the nervous system, particularly affecting the signals that control muscle contractions.

5. **Muscle Types Affected**: The toxin primarily affects voluntary muscles, which are the muscles we can control consciously, such as those involved in movement and posture.

6. **Conclusion**: Based on the information provided, the correct answer to the question is that the toxin produced by Clostridium tetani affects voluntary muscles.

**Final Answer**: The toxin produced by Clostridium tetani affects voluntary muscles.

---