Schwann Cell (Noun)
Meaning
Any cell that covers the nerve fibers in the peripheral nervous system and forms the myelin sheath.
Classification
Nouns denoting body parts.
Examples
- Peripheral nerves are comprised of axons covered by layers of Schwann cell membranes that provide electrical insulation.
- The myelin sheath surrounding the axon is produced by segments of Schwann cells along the length of the axon.
- In the peripheral nervous system, the axon is covered by a myelin sheath produced by Schwann cells.
- Each segment of the myelin sheath is covered by a continuous spiraling Schwann cell.
- A gap in the myelin sheath, known as the node of Ranvier, occurs between adjacent Schwann cells.