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Myelin sheath is produced by:

1. Astrocytes and Schwann cells
2. Oligodendrocytes and Osteoclasts
3. Osteoclasts and Astrocytes
4. Schwann cells and Oligodendrocytes

Correct answer: Schwann cells and Oligodendrocytes

Solution

Schwann cells form the myelin sheath around peripheral nerve fibers, while oligodendrocytes do the same in the central nervous system. The other listed cells do not produce myelin.

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