Myelin sheath — Free Biology Illustration | GPAI | GPAI

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Myelin sheath — Free Biology Illustration | GPAI | GPAI

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Myelin sheath

Myelin sheath

Biology

Myelin sheath

A myelin sheath shown as a thick segmented insulating covering wrapped in spiral multilayered lamellae around a long, narrow cylindrical axon. The sheath appears pale cream, cream-white, or light yellow, forming swollen sausage-like cylindrical segments with a smooth layered or slightly glossy surface. Narrow gaps separate adjacent segments at the ends, and the central axon runs as a thin fiber through the middle. In cross section the sheath appears as concentric layers around the core; in side view it appears as a smooth insulated sleeve divided into segments.

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