Telencephalon

The telencephalon is the most anterior region of the primitive brain.
Together with the diencephalon, the telencephalon develops from the prosencephalon, the primitive forebrain 1.

The inferior boundaries of the telencephalon are found at the diencephalon and brainstem 1. Posteriorly the telencephalon is bordered by the cerebellum 1.

The telencephalon is composed of surface grey matter (the cerebral cortex) and underlying white matter, with deep masses of grey matter 2. The corpus callosum facilitates communication between the two hemispheres 3.

The telencephalon comprises:

Related pathology

Atelencephaly is a rare disorder that results when the ​derivatives of the telencephalon are absent or dysplastic. 

Anatomy: Brain
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Article information

rID: 63354
Section: Anatomy
Tag: refs
Synonyms or Alternate Spellings:

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Cases and figures

  • Figure 1: Schematic of brain embryogenesis
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  • Figure 2: Brain development
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  • Figure 3: annotated MRI
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