Canadian Medical Guide > Anatomy > Nervous System > Central Nervous System > Brain > Prosencephalon > Telencephalon Terms and Definitions

Telencephalon

Medical Definition:	Paired anteriolateral evaginations of the prosencephalon plus the lamina terminalis. The cerebral hemispheres are derived from it. Many authors consider cerebrum a synonymous term to telencephalon, though a minority include diencephalon as part of the cerebrum (Anthoney, 1994).
Also Called:	Cerebrum

Telencephalon Categories.

	Basal Ganglia - Large subcortical nuclear masses derived from the telencephalon and located in the basal regions of the cerebral hemispheres.
	Cerebral Cortex - The thin layer of gray matter on the surface of the cerebral hemisphere that develops from the telencephalon and folds into gyri. It reaches its highest development in man and is responsible for intellectual faculties and higher mental functions.
	Corpus Callosum - Broad plate of dense myelinated fibers that reciprocally interconnect regions of the cortex in all lobes with corresponding regions of the opposite hemisphere. The corpus callosum is located deep in the longitudinal fissure.
	Diagonal Band of Broca - Cholinergic bundle of nerve fibers posterior to the anterior perforated substance. It interconnects the paraterminal gyrus in the septal area with the hippocampus and lateral olfactory area.
	Internal Capsule - White matter pathway, flanked by nuclear masses, consisting of both afferent and efferent fibers projecting between the cerebral cortex and the brainstem. It consists of three distinct parts: an anterior limb, posterior limb, and genu.

Telencephalon Medical Definitions and Terms

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