Editing Proisocortex

{{Short description|One of two subtypes of cortical areas}}
'''Proisocortex''' or '''pro-isocortex''' is one of two subtypes of [[cerebral cortex|cortical]] areas in the areas belonging to the [[neocortex]]. The other subtype is termed the '''true isocortex'''. Proisocortical areas are transitional areas placed between areas of true isocortex and areas of periallocortex (which themselves are transitional between "true" [[allocortex]] and proisocortex). The histological structure of proisocortex is also transitional between true isocortex and either [[peripaleocortex]] or [[periarchicortex]], depending on with which subtype of periallocortex the given proisocortical area borders.<ref name="BrainInfo Proisocortex">{{cite web|title=Proisocortex|url=http://braininfo.rprc.washington.edu/CentralDirectory.aspx?ID=2311|work=BrainInfo|publisher=University of Washington|accessdate=13 October 2017}}</ref>

Proisocortex is found in the [[cingulate cortex]] (part of the [[limbic system]]),  in [[Brodmann area|Brodmann's area]]s [[Brodmann area 24|24]], [[Brodmann area 25|25]], [[Brodmann area 30|30]] and [[Brodmann area 32|32]],  the [[Insular cortex|insula]] and [[parahippocampal gyrus]].<ref name="BrainInfo Proisocortex" />

The transitional cortical areas from isocortical side (i.e. proisocortex) and from allocortical side (i.e. periarchicortex and peripaleocortex) together are called [[mesocortex]]. The mesocortex is essentially the same as [[paralimbic cortex]], as all mesocortical transitional areas are found exclusively in paralimbic region, and vice versa - all the paralimbic cortex is mesocortical in its nature (embryonic and phylogenetic origins) and in its histology. But the term "mesocortex" represents a different concept from the term "paralimbic cortex". The mesocortex is distinguished from other cortical areas based on [[cytoarchitectonics]] and histology, while the paralimbic cortex is an anatomical designation, meaning cortical areas near subcortical limbic structures.<ref name="BrainInfo Mesocortex">{{cite web|title=Mesocortex|url=http://braininfo.rprc.washington.edu/CentralDirectory.aspx?ID=2335|work=BrainInfo|publisher=University of Washington|accessdate=13 October 2017}}</ref>

== References ==
{{reflist|4}}

== External links == 

* [http://braininfo.rprc.washington.edu/Scripts/ancilcentraldirectory.asp?ID=757 Proisocortex], BrainInfo.

[[Category:Cerebral cortex]]

{{Neuroanatomy-stub}}
{{Cortex types}}