The habenular nucleus is a set of well-conserved structures in all vertebrate animals.
2.
These cells also send fibers through the stria medullaris to the lateral habenular nucleus and mediodorsal thalamic nucleus.
3.
In neuroanatomy, "'habenula "'( diminutive of Latin " habena " meaning rein ) originally denoted the stalk of the pineal gland ( pineal habenula; pedunculus of pineal body ), but gradually came to refer to a neighboring group of nerve cells with which the pineal gland was believed to be associated, the habenular nucleus.