zones of hypothalamus

(redirected from periventricular zone)

zones of hypothalamus

[TA]
rostrocaudally oriented regions of the hypothalamus characterized by their position and cell groups. The periventricular zone [TA] (zona periventricularis [TA]) is a thin sheet of small neurons located in the wall of the third ventricle. The medial zone [TA] (zona medialis [TA]) lies between the periventricular zone and a rostrocaudal line drawn between the mammillothalamic tract and the postcommissural fornix, and consists of supraoptic, tuberal, and mammillary regions. The lateral zone [TA] (zona lateralis [TA]) is lateral to the medial zone, and contains the tuberal nuclei and the fibers of the medial forebrain bundle.
Synonym(s): zonae hypothalamicae [TA]
References in periodicals archive ?
Little or no involvement of the neural tissue was noted in areas other than the periventricular zone. Vasculitis was not found.
Quite notably, AIP displayed robust expression in periventricular zones in all imaged brain regions.
Tatemichi [59] suggested that progressive dementia following a single clinically obvious stroke may be explained by the cumulative effects of subsequent strategically located white matter infarctions, especially those that disrupt the association pathways in the periventricular zones, including the thalamocortical and corticostriate pathways.