Axons (IMAGE)

University of Wisconsin-Madison

Axons

Caption

In the normal nerve (a) all axons in the optic nerve are surrounded by thick, dark sheaths of myelin in contrast to the completely demyelinated nerve (b) during active disease (when VEP latency lengthens). After recovery (in c) axons have been remyelinated--and though the sheaths are thin compared to normal, the VEP latency has shortened.

Credit

Ian Duncan

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