Which cells form myelin around neuronal axons?

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Study for Neurophysiology Test. Dive into cell types, neural signals, and sensory pathways with multiple choice questions and flashcards. Prepare effectively with hints and explanations!

Multiple Choice

Which cells form myelin around neuronal axons?

Explanation:
Myelin around axons is formed by glial cells. In the central nervous system, oligodendrocytes wrap segments of several nearby axons, creating the myelin sheath. In the peripheral nervous system, Schwann cells wrap around a single axon segment to produce myelin. This insulation increases the speed of electrical signaling via saltatory conduction, with nodes of Ranvier between myelin segments. Neurons themselves don’t generate myelin, and muscle or blood cells don’t form myelin either.

Myelin around axons is formed by glial cells. In the central nervous system, oligodendrocytes wrap segments of several nearby axons, creating the myelin sheath. In the peripheral nervous system, Schwann cells wrap around a single axon segment to produce myelin. This insulation increases the speed of electrical signaling via saltatory conduction, with nodes of Ranvier between myelin segments. Neurons themselves don’t generate myelin, and muscle or blood cells don’t form myelin either.

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