8. Myelination & Glial Cell Types

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10 Terms

1
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What glial cells form myelin in the CNS?

Oligodendrocytes

2
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What glial cells form myelin in the PNS?

Schwann cells

3
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How do axons rest relative to glial cells in unmyelinated fibers?

In depressions of cells

4
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Do Schwann cells completely wrap around unmyelinated axons?

No

5
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What tissue type consists of unmyelinated axons and neuron cell bodies?

Gray matter

6
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What is gray matter composed of?

Unmyelinated axons and neuron cell bodies

7
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How do glial cells interact with axons in myelinated fibers?

Wrap around axon

8
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What structure is formed by multiple layers of wrapped glial membrane?

Myelin sheath

9
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What tissue type consists of myelinated axons?

White matter

10
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What is white matter composed of?

Myelinated axons