Editing Forebrain

{{short description|Forward-most portion of the brain}}
{{Infobox brain
| Name            = Forebrain (Prosencephalon)
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| 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            =
}}

In the  [[anatomy]] of the [[brain]] of [[vertebrates]], the '''forebrain''' or '''prosencephalon''' is the [[Anatomical terms of location#Directional terms|rostral]] (forward-most) portion of the [[brain]]. The forebrain controls body temperature, reproductive functions, eating, sleeping, and the display of emotions. 

Vesicles of the forebrain (prosencephalon), the [[midbrain]] (mesencephalon), and [[hindbrain]] (rhombencephalon) are the three [[Brain vesicle|primary brain vesicles]] during the early [[development of the nervous system]]. At the five-vesicle stage, the forebrain separates into the [[diencephalon]] ([[thalamus]], [[hypothalamus]], [[subthalamus]], and [[epithalamus]]) and the [[telencephalon]] which develops into the [[cerebrum]]. The cerebrum consists of the [[cerebral cortex]], underlying [[white matter]], and the [[basal ganglia]].

In humans, by 5 weeks in utero it is visible as a single portion toward the front of the fetus. At 8 weeks in utero, the forebrain splits into the left and right cerebral hemispheres.

When the embryonic forebrain fails to divide the brain into two lobes, it results in a condition known as [[holoprosencephaly]]. The main structures of the forebrain include the cerebrum, thalamus and hypothalamus.

==See also==
* [[List of regions in the human brain]]

==References==
* [https://www.neuinfo.org/mynif/search.php?q=%22Forebrain%22&t=data&s=cover&b=0&r=20 NIF Search - Forebrain] {{Webarchive|url=https://web.archive.org/web/20160304235139/https://www.neuinfo.org/mynif/search.php?q=%22Forebrain%22&t=data&s=cover&b=0&r=20 |date=2016-03-04 }} via the [[Neuroscience Information Framework]]

{{Nervous system}}
{{Diencephalon}}
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[[Category:Cerebrum]]
[[Category:Animal developmental biology]]