The internal granular layer of the cortex, also commonly referred to as the granular layer of the cortex, is the layer IV in the subdivision of the
mammalian cortex into
6 layers. The adjective internal is used in opposition to the
external granular layer of the cortex, the term granular refers to the
granule cell
A granule is a large particle or grain. It can refer to:
* Granule (cell biology), any of several submicroscopic structures, some with explicable origins, others noted only as cell type-specific features of unknown function
** Azurophilic granul ...
s found here.
This layer receives the
afferent connections from the
thalamus
The thalamus (from Greek θάλαμος, "chamber") is a large mass of gray matter located in the dorsal part of the diencephalon (a division of the forebrain). Nerve fibers project out of the thalamus to the cerebral cortex in all directions, ...
and from other cortical regions and sends connections to the other layers. The
line of Gennari
The line of Gennari (also called the "band" or "stria" of Gennari) is a band of myelinated axons that runs parallel to the surface of the cerebral cortex on the banks of the calcarine fissure in the occipital lobe. This formation is visible to the ...
(occipital stripe) is also present in this layer.
Cerebral cortex
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