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Habenular commissure

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Title: Habenular commissure  
Author: World Heritage Encyclopedia
Language: English
Subject: Habenular trigone, Diencephalon, Lateral dorsal nucleus of thalamus, Lateral posterior nucleus of thalamus, Subthalamic fasciculus
Collection: Neuroanatomy
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Habenular commissure

Habenular commissure
Mesal aspect of a brain sectioned in the median sagittal plane.
Details
Latin commissura habenularum
Identifiers
NeuroNames hier-282
NeuroLex ID Habenular commissure
Anatomical terms of neuroanatomy

The habenular commissure, is a brain commissure (a band of nerve fibers) situated in front of the pineal gland that connects the habenular nuclei on both sides of the diencephalon.

The habenular commissure is part of the habenular trigone (a small depressed triangular area situated in front of the superior colliculus and on the lateral aspect of the posterior part of the tænia thalami). The trigonum habenulæ also contains groups of nerve cells termed the ganglion habenulæ. Fibers enter the trigonum habenulæ from the stalk of the pineal gland, and the habenular commissure. Most of the trigonum habenulæ's fibers are, however, directed downward and form a bundle, the fasciculus retroflexus of Meynert, which passes medial to the red nucleus, and, after decussating with the corresponding fasciculus of the opposite side, ends in the interpeduncular nucleus.

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