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The insulating substance wrapped around many axons is:
AMycelin
BMucosin
CMyelin
DMelanin
Answer & Solution
Correct answer: C. Myelin
1. It is produced by glial cells.
2. It works like the plastic on an electrical wire.
3. That substance is myelin.
_Source: OpenStax Anatomy and Physiology 2e, Chapter 12, The Nervous System and Nervous Tissue._
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