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Pronunciation: ak′son-ot-mē′sis

Definition: Interruption of the axons of a nerve that results in degeneration of its distal (peripheral) segment (wallerian degeneration) without appreciable damage to the supporting structures (endoneurium; perineurium; epineurium) of the nerve at the site of the injury.

[axon + G. tmēsis, a cutting]

See Also: neurapraxia, neurotmesis

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© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review date: Sep 19, 2016.