Trichomonas tenax lives in

Options

A. Human intestine
B. Buccal cavity
C. Genital tract
D. Nasal tract.

Answer

**Step-by-Step Solution:**

1. **Understanding the Organism**: Trichomonas tenax is a type of protozoan parasite. It is important to identify its habitat to answer the question correctly.

2. **Analyzing the Options**: The options given are:
- Human intestine
- Buccal cavity
- Genital tract
- Nasal tract

3. **Identifying the Correct Habitat**:
- The human intestine is primarily associated with other types of protozoans, not Trichomonas tenax.
- The buccal cavity refers to the mouth area, which is where Trichomonas tenax is known to cause infections.
- The genital tract is related to reproductive infections, which is not the primary habitat for Trichomonas tenax.
- The nasal tract is associated with respiratory infections and is not a habitat for this organism.

4. **Conclusion**: Based on the information that Trichomonas tenax is known to cause oral infections, the correct answer is the buccal cavity.

5. **Final Answer**: Therefore, Trichomonas tenax lives in the buccal cavity (option 2).

---