Psychology Wiki      Organum vasculosum of lamina terminalis
34,075pages on     this wiki        Brain: Organum vasculosum of
lamina terminalis     Latin organum vasculosum laminae
terminalis     Gray's subject #     Part of     BrainInfo/UW
hier-366     MeSH [1]      The organum vasculosum of the lamina
terminalis (OVLT or supraoptic crest) is one of the
circumventricular organs of the brain. Other circumventricular
organs are the subfornical organ (SFO) and the area postrema in
the brainstem.      AV3V regionEdit      The OVLT and the SFO
are both strongly interconnected with the median preoptic
nucleus of the hypothalamus (the nucleus medianus), and together
these three structures comprise the "anterioventral third
ventricle (AV3V) region" -- the region anterior and ventral to
the third ventricle. The AV3V region is very important in the
regulation of fluid and electrolyte balance by controlling
thirst, sodium excretion, blood volume regulation, and
vasopressin secretion.       The OVLT lacks a blood