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va·gal (nerve) tri·gone[TA]
a prominence in the floor of the inferior fovea of the fourth ventricle that overlies the dorsal motor nucleus of the vagus.
Synonym(s): trigonum nervi vagi [TA], trigone of vagus nerve ☆ , trigonum vagale ☆ , ala cinerea, ashen wing, gray wing, vagi eminentia
Farlex Partner Medical Dictionary © Farlex 2012
Gray triangular prominence on the floor of the fourth ventricle. The autonomic fibers of the vagus nerve arise from the cells of the nucleus of this area. Also called triangle of the vagus nerve and trigonum nervi vagi.
See also: ala
Medical Dictionary, © 2009 Farlex and Partners