|—n , pl -la|
|mesencephalon Compare rhombencephalon Nontechnical name: forebrain the part of the brain that develops from the anterior portion of the neural tube|
|[C19: from New Latin, from Greek prosō forward + enkephalos brain]|
prosencephalon pros·en·ceph·a·lon (prŏs'ěn-sěf'ə-lŏn')
The most anterior of the three primary regions of the embryonic brain, from which the telencephalon and diencephalon develop.
The segment of the adult brain that develops from the embryonic forebrain and includes the cerebrum, thalamus, and hypothalamus.