Vagal trigone

Vagal trigone

Dissection of brain-stem. Dorsal view.

Human caudal brainstem posterior view (Trigonum nervi vagi is #7)
Latin trigonum nervi vagi
NeuroNames hier-631
TA A14.1.05.709
FMA 78445

Anatomical terms of neuroanatomy

The cells of the dorsal nucleus are spindle-shaped, like those of the posterior column of the spinal cord, and the nucleus is usually considered as representing the base of the posterior column. It measures about 2 cm. in length, and in the lower, closed part of the medulla oblongata is situated behind the dorsal motor nucleus of the vagus; whereas in the upper, open part it lies lateral to that nucleus, and corresponds to an eminence, named the vagal trigone (ala cinerea, not to be confused with tuberculum cinereum nor tuber cinereum), in the rhomboid fossa.

Additional images


This article incorporates text in the public domain from the 20th edition of Gray's Anatomy (1918)

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