In a neuron , Schwann cells occur in association with

Options

A. Axon
B. Soma
C. Dendrite
D. Axon hillock .

Answer

**Step-by-Step Solution:**

1. **Understanding Schwann Cells**: Schwann cells are non-neuronal cells that are part of the peripheral nervous system. Their primary function is to form the myelin sheath around the axons of neurons.

2. **Identifying the Options**: The question provides four options:
- Axon
- Soma
- Dendrite
- Axon hillock

3. **Analyzing Each Option**:
- **Axon**: Schwann cells wrap around the axons of both motor and sensory neurons, providing insulation and speeding up signal transmission.
- **Soma**: The soma is the cell body of the neuron, which contains the nucleus and organelles. Schwann cells do not associate with the soma.
- **Dendrite**: Dendrites are the branch-like structures that receive signals from other neurons. Schwann cells do not associate with dendrites.
- **Axon Hillock**: The axon hillock is the part of the neuron where the axon begins and is responsible for initiating action potentials. Schwann cells do not associate with the axon hillock.

4. **Conclusion**: Based on the analysis, Schwann cells occur in association with the axon.

**Final Answer**: Schwann cells occur in association with the axon.

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