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Vagal trigone

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Brain: Vagal trigone
Dissection of brain-stem. Dorsal view.
Latin trigonum nervi vagi
Gray's subject #187 781
Part of
BrainInfo/UW hier-631
MeSH [1]

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 hypoglossal nucleus; whereas in the upper, open part it lies lateral to that nucleus, and corresponds to an eminence, named the vagal trigone (ala cinerea), in the rhomboid fossa.

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