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Prosencephalon (plural: prosencephala or prosencephalons) or forebrain is one of the primary divisions of neural tube

Later the forebrain further separates into the telencephalon (cerebrum) and diencephalon (thalamus and related structures).

At about 8 weeks of intrauterine life, the prosencephalon splits into two, which then forms the two cerebral hemispheres. Failure of this splitting results in holoprosencephaly.

Anatomy: Brain

Anatomy: Brain

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Article information

rID: 25203
Section: Anatomy
Synonyms or Alternate Spellings:
  • Prosencephala
  • Prosencephalons
  • Forebrains
  • Forebrain

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Cases and figures

  • Figure 1: Brain development
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  • Figure 2: Schematic of brain embryogenesis
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