How do Schwann cells and oligodendrocytes differ in shape and location?

Explanation

### Step-by-Step Text Solution:

1. **Definition of Schwann Cells and Oligodendrocytes**:
- Both Schwann cells and oligodendrocytes are types of glial cells, which are non-neuronal cells in the nervous system that support and protect neurons.

2. **Location**:
- **Schwann Cells**: These cells are located in the **Peripheral Nervous System (PNS)**. They are responsible for myelinating the axons of peripheral neurons.
- **Oligodendrocytes**: These cells are found in the **Central Nervous System (CNS)**, which includes the brain and spinal cord. They also myelinate axons but in this central region.
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