Encyclopedia entry

Abducens (CN VI) Nerve

Published on 9 August 2026Version 1

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Abstract

Several variations have been reported in the course and/or distribution of this nerve. It may be absent on one side, in which case the extraocular muscle usually innervated by the abducens (the lateral rectus) is supplied by the oculomotor nerve. The abducens may leave the brain stem not as a single bundle but as several widely separated fascicles emerging from the lower border of the pons or between fibers of the pyramid. The abducens occasionally furnishes a branch to the superior rectus, or to the nasociliary nerve or even to the ciliary ganglion.

The abducens occasionally furnishes a branch to the superior rectus, or to the nasociliary nerve or even to the ciliary ganglion.

The abducens nerve to the abducens muscle may be found doubled.

Riferimenti dell’opera originale

Elenco riportato come compare nella fonte, senza normalizzazione dei formati bibliografici.

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Anatomical classification

Systems:: Nervous system

Content provenance

Adaptation

Adaptation of «Abducens (CN VI) Nerve — Illustrated Encyclopedia of Human Anatomic Variation: Opus I: Muscular System» by Ronald A. Bergman, Adel K. Afifi, Ryosuke Miyauchi. Source: https://www.anatomyatlases.org/AnatomicVariants/NervousSystem/Text/AbducensNerve.shtml Original work distributed under the CC BY-NC-SA 4.0 licence (https://creativecommons.org/licenses/by-nc-sa/4.0/deed.it). Adaptation by Redazione AIVA. Changes from the original: Testo originale inglese riprodotto integralmente e riorganizzato nel formato scheda del portale (sintesi, testo, riferimenti), senza modificarne le affermazioni. La traduzione italiana non è ancora stata eseguita, e la pagina lo dichiara. Le figure non sono state copiate: sono collegate alla pagina d’origine. This publication is not approved or endorsed by the authors of the original work.

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