Schwann cells are present in which part of a myelinated neuron?

Options

A. Dendrites
B. Axon hillock
C. Axon
D. Soma/body

Answer

To determine where Schwann cells are present in a myelinated neuron, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Neurons**:
- A neuron is the structural and functional unit of the nervous system. It consists of different parts including the cell body (soma), dendrites, and axon.

2. **Identifying Neuron Parts**:
- **Cell Body (Soma)**: This is the main part of the neuron that contains the nucleus and organelles.
- **Dendrites**: These are short cytoplasmic processes that receive nerve impulses from other neurons.
- **Axon**: This is a long cytoplasmic process that transmits nerve impulses away from the cell body to other neurons or muscles.

3. **Role of Schwann Cells**:
- Schwann cells are specialized glial cells that form the myelin sheath around the axons of peripheral neurons.

4. **Myelin Sheath Formation**:
- The myelin sheath is a lipid-rich membrane that insulates the axon and is crucial for the rapid transmission of electrical impulses along the axon.

5. **Conclusion**:
- Schwann cells are primarily present in the axon of a myelinated neuron, where they form the myelin sheath.

### Final Answer:
Schwann cells are present in the **axon** of a myelinated neuron.

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