Adult Wuchereria bancrofti attacks

Options

A. Nervous system
B. Lymph vessels
C. Muscular system
D. Blood vessels .

Answer

To solve the question regarding where adult Wuchereria bancrofti attacks, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Organism**: Understand that Wuchereria bancrofti is a type of nematode, specifically a parasitic roundworm. It is known to cause lymphatic filariasis in humans.

2. **Understand the Life Cycle**: Recognize that Wuchereria bancrofti has a complex life cycle that involves two hosts: humans and mosquitoes. Humans are the definitive host where the adult worms live and reproduce.

3. **Transmission Mechanism**: Note that the microfilariae (larval stage) of Wuchereria bancrofti are present in the mosquito, which acts as a vector. When the mosquito bites a human, it transmits these microfilariae into the human bloodstream.

4. **Target of Infection**: Determine where the adult worms reside in the human body. Wuchereria bancrofti primarily invades the lymphatic system, which includes lymph vessels.

5. **Evaluate the Options**: Given the options:
- a. Nervous system
- b. Lymph vessels
- c. Muscular system
- d. Blood vessels

The correct answer is option **B** (Lymph vessels) because the adult worms inhabit and cause damage to the lymphatic system.

### Final Answer:
The adult Wuchereria bancrofti attacks **b. Lymph vessels**.

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