myelinated

[mahy-uh-luh-ney-tid]

adjective

Anatomy.

1. (of a nerve) having a myelin sheath; medullated.

myelinated

/ ˈmaɪɪlɪˌneɪtɪd /

adjective

1. (of a nerve fibre) having a myelin sheath

Word History and Origins

Origin of myelinated¹

First recorded in 1895–1900; myelin + -ate ¹ + -ed ²

Example Sentences

"The activity of a neuron can regulate the extent to which its axon is myelinated."

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To understand how electrically active axons communicate with their surrounding oligodendrocytes, the researchers studied the mouse optic nerve, an ideal pathway for stimulating and monitoring the electrical activity of myelinated axons.

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Fibers that remained myelinated despite the chronic attack of T cells had a higher risk to degenerate, while those that lost their myelin survived.

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Research in several laboratories has found recently that OPCs can respond to neural impulse activity by dividing and maturing into myelin-forming oligodendrocytes, and increasing the number of myelinated axons.

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Among them are how Heimburg's model accounts, quantitatively, for the increased velocity of conduction in myelinated axons and the mechanism by which it leads to transmission across a chemical synapse.

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