Prosencephalon 485766 217020911 2008-06-04T07:40:12Z Thijs!bot 1392310 robot Adding: [[uk:Передній мозок]] {{Infobox Brain| Name = {{PAGENAME}} | Latin = | GraySubject = | GrayPage = | Image = EmbryonicBrain.svg | Caption = Diagram depicting the main subdivisions of the embryonic vertebrate brain. These regions will later differentiate into forebrain, midbrain and hindbrain structures. | Image2 = | Caption2 = | IsPartOf = | Components = | Artery = | Vein = | BrainInfoType = | BrainInfoNumber = | MeshName = | MeshNumber = | }} In the [[anatomy]] of the [[brain]] of [[vertebrates]], the '''prosencephalon''' (or '''forebrain''') is the [[rostral]]-most (forward-most) portion of the [[brain]]. The prosencephalon, the [[mesencephalon]] (midbrain), and [[rhombencephalon]] (hindbrain) are the three primary portions of the brain during early [[developmental biology|development]] of the [[central nervous system]]. At the five-vesicle stage, the prosencephalon separates into the [[diencephalon]] (prethalamus, [[thalamus]], [[hypothalamus]], [[subthalamus]], [[epithalamus]], and [[pretectum]]) and the [[telencephalon]] ([[cerebrum]]). The cerebrum consists of the [[cerebral cortex]], underlying [[white matter]], and the [[basal ganglia]]. When the embryonic prosencephalon fails to divide the brain into two lobes, it results in a condition known as [[holoprosencephaly]]. ==Additional images== <gallery> Image:Gray40.png|Embryo between eighteen and twenty-one days. Image:Gray460.png|Head of chick embryo of about thirty-eight hours’ incubation, viewed from the ventral surface. X 26 </gallery> ==See also== * [[List of regions in the human brain]] {{neuroanatomy-stub}} {{Prosencephalon}} [[Category:Cerebrum]] [[Category:Developmental biology]] [[de:Prosencephalon]] [[fr:Prosencéphale]] [[ko:전뇌]] [[nl:Prosencephalon]] [[no:Prosencephalon]] [[ru:Передний мозг]] [[simple:Prosencephalon]] [[th:สมองส่วนหน้า]] [[uk:Передній мозок]]