Habenular trigone

























Habenular trigone
Details
Identifiers
Latin trigonum habenulae
NeuroNames 293
TA A14.1.08.005
FMA 74868

Anatomical terms of neuroanatomy
[edit on Wikidata]


The habenular trigone is a small depressed triangular area situated in front of the superior colliculus and on the lateral aspect of the posterior part of the taenia thalami.


It contains a group of nerve cells termed the ganglion habenulæ.


Fibers enter it from the stalk of the pineal gland, and others, forming what is termed the habenular commissure, pass across the middle line to the corresponding ganglion of the opposite side.


Most of its fibers are, however, directed downward and form a bundle, the fasciculus retroflexus of Meynert (or habenulointerpeduncular tract), which passes medial to the red nucleus, and, after decussating with the corresponding fasciculus of the opposite side, ends in the interpeduncular ganglion.



References


This article incorporates text in the public domain from page 812 of the 20th edition of Gray's Anatomy (1918)













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