Which organism resides in lymph nodes ?

Options

A. Taenia
B. Wuchereria
C. Plasmodium
D. Dipolococcus

Answer

To determine which organism resides in lymph nodes, we can analyze the options provided:

1. **Tinea** - This refers to a group of fungi that cause skin infections, commonly known as ringworm. Tinea does not reside in lymph nodes.

2. **Wuchereria** - This is a genus of parasitic worms, specifically filarial worms. Wuchereria bancrofti is known to reside in the lymphatic system, particularly in the lymph nodes. It can block the flow of lymph fluid, leading to conditions such as elephantiasis, which is also known as lymphatic filariasis.

3. **Plasmodium** - This is a genus of protozoan parasites that cause malaria. Plasmodium does not reside in lymph nodes; instead, it primarily infects red blood cells.

4. **Diplococcus** - This refers to a type of bacteria that can cause infections, such as pneumonia. While bacteria can be found in lymph nodes during infections, they do not typically reside there in the same way that Wuchereria does.

Based on this analysis, the organism that resides in lymph nodes is **Wuchereria**.

### Step-by-Step Solution:
1. **Identify the options**: The question provides four organisms: Tinea, Wuchereria, Plasmodium, and Diplococcus.

2. **Analyze each organism**:
- Tinea: Fungal infections, not related to lymph nodes.
- Wuchereria: Parasitic worms that reside in lymph nodes and can cause lymphatic issues.
- Plasmodium: Protozoan causing malaria, not residing in lymph nodes.
- Diplococcus: Bacteria that can infect but do not reside in lymph nodes.

3. **Conclude**: The organism that resides in lymph nodes is Wuchereria.

### Final Answer:
The organism that resides in lymph nodes is **Wuchereria**.