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anterior median fissure of medulla oblongata


Definition: the longitudinal groove in the midline of the anterior aspect of the medulla oblongata; it is the medullary equivalent of the anterior median fissure of the spinal cord and ends at the foramen cecum posterius; its caudal part is obliterated by the decussation of the pyramids.

Synonym(s): fissura mediana anterior medullae oblongataeTA, anteromedian groove1

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