Human brain: Difference between revisions

The cerebral cortex is essentially a sheet of neural tissue, folded in a way that allows a large surface area to fit within the confines of the skull. Each cerebral hemisphere, in fact, has a total surface area of about 1.3 square feet.<ref>[[#refToro|Toro et al., 2008]]</ref> AnatomistsAnatomistssssssssssssssssssssssssssssssssssssssss call each cortical fold a [[Sulcus (neuroanatomy)|sulcus]], and the smooth area between folds a [[gyrus]]. Most human brains show a similar pattern of folding, but there are enough variations in the shape and placement of folds to make every brain unique. Nevertheless, the pattern is consistent enough for each major fold to have a name, for example, the "superior frontal gyrus", "postcentral sulcus", or "trans-occipital sulcus". Deep folding features in brain such as the inter-hemispheric and [[lateral fissure]], and the [[insular cortex]] are present in almost all normal subjects.