cerebral cortex
Acronym: Cx
The term cerebral cortex refers to the most prominent part of the endbrain as defined by dissection and Nissl stain for internal structure. It derives developmentally from the cortical plate of the embryonic Encephalon. In the human ( Mai-2004 ) and the macaque ( Martin-2000 ) it is divided by sulci and fissures into six lobes: the frontal lobe, parietal lobe, occipital lobe, temporal lobe, limbic lobe and insula. In the rat ( Swanson-2004 ) and mouse ( Hof-2000 ) it is a smooth structure. In the Functional CNS Model - Rat it is one of three components of the cerebrum. The other two are the cortical subplate nuclei and the subcortical nuclei. Its definition in the Functional CNS Model - Rat is the same as the classical definition, except that layer 6b is provisionally classified with the cortical plate nuclei not with the cerebral cortex ( Swanson-2004 ).
     
     The cerebral cortex of primates is classically subdivided topographically into lobes and gyri, on the basis of sulcal landmarks. In functional models it is subdivided into regions and areas of neocortex and allocortex on the basis of connectivity and internal architecture ( Stephan-1975 ). While primates and rodents share almost no topographic landmarks, most of the architectonic areas of the primate brain have equivalents in the rodent brain. See Functional CNS Model - Rat.

Also known as: cortical plate, cortical plate (areas), Cortex cerebri


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