internal granular layer

Lamina granularis interna is layer 4, or the internal granular layer of cortex cerebri.

It should not be confused with the internal granular layer of the cerebral cortex (commonly known as layer IV).

The EGL is a cell population present during development, which migrates past the purkinje layer to form the internal granular layer (IGL).

The fourth, fifth and sixth layers, or the Internal Granular layer, Internal Pyramidal layer, and Polymorphic or Multiform layer respectively, are formed during mouse E11.5 to E14.5.

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.

Layer IV, the internal granular layer, contains different types of stellate and pyramidal neurons, and is the main target of thalamocortical afferents from thalamus type C neurons as well as intra-hemispheric corticocortical afferents.