Schitosoma lives in human body in

Options

A. Lymph nodes
B. uriary tract blood vessels
C. Measnteric and hapatic portal veins
D. All of the above

Answer

**Step-by-Step Solution:**

1. **Understanding Schistosoma**: Schistosoma is a genus of parasitic flatworms, commonly known as blood flukes. They are known to infect humans and can cause schistosomiasis.

2. **Life Cycle of Schistosoma**: The life cycle of Schistosoma begins when the larvae enter the human body. This typically occurs through contact with contaminated water.

3. **Habitat in the Human Body**: Once inside the human body, Schistosoma larvae develop into adult worms. They primarily inhabit the blood vessels, specifically targeting the mesenteric veins (which supply the intestines) and the hepatic portal veins (which supply the liver).

4. **Egg Laying**: Adult Schistosoma worms lay their eggs in various locations, including the lymph nodes and the blood vessels. The eggs can then migrate to different parts of the body.

5. **Excretion**: Eventually, the eggs are excreted from the body through the urinary tract, which is why Schistosoma is often associated with urinary symptoms.

6. **Conclusion**: Given the options provided:
- A) Lymph nodes
- B) Urinary tract blood vessels
- C) Mesenteric and hepatic portal veins
- D) All of the above

The correct answer is **D) All of the above**, as Schistosoma can inhabit all these locations during its life cycle.

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