most gray matter of the cerebrum is located in which region
Cerebral cortex [edit]. Surface of the cerebrum. The cerebral cortex, the outer layer of gray matter of the cerebrum, is found only in mammals. In larger mammals, including humans, the surface of the cerebral cortex folds to create gyri (ridges) and sulci (furrows) which increase the surface area.he cerebrum is the newest structure in the phylogenetic sense, and in mammals it is the largest and most developed, out of all known species. The cerebrum is made up of the two cerebral hemispheres and their cortices, (the outer layers of gray matter), and the underlying regions of white matter.