Question

Myelinated nerve fibres are found in
1. Cranial and sympathetic
2. Spinal and cranial
3. Spinal and parasympathetic
4. Sympathetic and parasympathetic​

Answer 1

Explanation:

Myelin is formed in the central nervous system (CNS; brain, spinal cord and optic nerve) by glial cells called oligodendrocytes and in the peripheral nervous system (PNS) by glial cells called Schwann cells. In the CNS, axons carry electrical signals from one nerve cell body to another.

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