Hypoglossal trigone; Trigone of hypoglossal nerve
Trigonum nervi hypoglossi
- Related terms: Hypoglossal trigone
Definition
The hypoglossal nucleus is derived from the base of the anterior column; in the lower closed part of the medulla oblongata it is situated on the ventrolateral aspect of the central canal; but in the upper part it approaches the rhomboid fossa, where it lies close to the middle line, under an eminence named the trigonum hypoglossi.
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