Pseudounipolar neurons are present in :

Options

A. Retina
B. Dorsal root ganglion
C. Olfactory mucosa
D. Cerebrum

Answer

### Step-by-Step Solution:

1. **Understanding Pseudounipolar Neurons**:
- Pseudounipolar neurons are a type of sensory neuron that has a single axon that splits into two branches. They are primarily involved in transmitting sensory information from the periphery to the central nervous system.

2. **Analyzing the Options**:
- The question asks where pseudounipolar neurons are present. We need to evaluate each option provided.

3. **Option 1: Retina**:
- The retina contains bipolar neurons, not pseudounipolar neurons. Therefore, this option is incorrect.

4. **Option 2: Dorsal Root Ganglion**:
- Pseudounipolar neurons are indeed found in the dorsal root ganglion. They are responsible for transmitting sensory information such as touch, pain, and temperature. This option is correct.

5. **Option 3: Olfactory Mucosa**:
- The olfactory mucosa contains bipolar neurons, which are responsible for the sense of smell. Thus, this option is also incorrect.

6. **Option 4: Cerebrum**:
- The cerebrum primarily contains multipolar neurons. Therefore, this option is incorrect as well.

7. **Conclusion**:
- The only correct option where pseudounipolar neurons are present is the Dorsal Root Ganglion.

### Final Answer:
Pseudounipolar neurons are present in **Dorsal Root Ganglion**.

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