The prosencephalon (or forebrain), the mesencephalon (midbrain), and rhombencephalon (hindbrain) are the three primary portions of the brain of vertebrates. They develop very early during development of the central nervous system.
|Anatomical terms of neuroanatomy|
When the embryonic prosencephalon fails to divide the brain into two lobes, it results in a condition known as holoprosencephaly.
|Wikimedia Commons has media related to brain.|
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