Editing Cerebral cortex (section)

===Folds===
{{Further |Gyrification}}
The cerebral cortex is folded in a way that allows a large surface area of [[nervous tissue|neural tissue]] to fit within the confines of the [[neurocranium]]. When unfolded in the human, each [[cerebral hemisphere|hemispheric]] cortex has a total surface area of about {{convert|0.12|sqm}}.<ref>{{cite journal | vauthors = Toro R, Perron M, Pike B, Richer L, Veillette S, Pausova Z, Paus T | title = Brain size and folding of the human cerebral cortex | journal = Cerebral Cortex | volume = 18 | issue = 10 | pages = 2352–2357 | date = October 2008 | pmid = 18267953 | doi = 10.1093/cercor/bhm261 | doi-access = free }}</ref> The folding is inward away from the surface of the brain, and is also present on the medial surface of each hemisphere within the [[longitudinal fissure]]. Most mammals have a cerebral cortex that is convoluted with the peaks known as gyri and the troughs or grooves known as sulci. Some small mammals including some small [[rodent]]s have smooth cerebral surfaces without [[gyrification]].<ref name="ReferenceA"/>