A unipolar neuron is a microscopic structure composed of all the following parts except

Options

A. Cell body
B. Dendrites
C. Axon
D. None of these

Answer

### Step-by-Step Solution:

1. **Understanding the Question**: The question asks which part is NOT found in a unipolar neuron. The options given are cell body, dendrites, axon, and none of these.

2. **Identifying Neuron Types**: There are three main types of neurons: multipolar, bipolar, and unipolar. Each type has a different structure.

3. **Characteristics of Unipolar Neurons**:
- Unipolar neurons have a single process that extends from the cell body, which then divides into two branches.
- They typically consist of a cell body and an axon, but they lack dendrites.

4. **Analyzing the Options**:
- **Cell Body**: Present in unipolar neurons.
- **Dendrites**: Absent in unipolar neurons.
- **Axon**: Present in unipolar neurons.
- **None of these**: This option suggests that all parts are present, which is incorrect.

5. **Conclusion**: Since unipolar neurons do not have dendrites, the correct answer is that they are composed of all the following parts except dendrites.

### Final Answer:
The part that is NOT found in a unipolar neuron is **dendrites**.

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