hypoglossal trigone

hy·po·glos·sal tri·gone

[TA]

a slight elevation in the floor of the inferior recess of the fourth ventricle, beneath which is the nucleus of origin of the twelfth cranial nerve.

Synonym(s): trigonum nervi hypoglossi [TA], trigone of hypoglossal nerve ☆ , eminentia hypoglossi, hypoglossal eminence, trigonum hypoglossi, tuberculum hypoglossi