Skip to Content

external arcuate fibers


Definition: these include: 1) posterior external arcuate fibers [TA] that arise from cells in the accessory or lateral cuneate nucleus and pass to the cerebellum, and 2) anterior external arcuate fibers [TA] that arise from the arcuate nuclei at the base of the medulla oblongata and pass around the lateral surface of the medulla; both enter the cerebellum as components of the restiform portion of the inferior cerebellar peduncle.

Synonym(s): fibrae arcuatae externae

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.

© Copyright 2019 Wolters Kluwer. All Rights Reserved. Review date: Sep 19, 2016.