Gyri and sulci crumple the cerebral cortex so a large sheet of gray matter packs into a small skull — often estimated near a threefold gain in surface versus a smooth brain.
More surface means more cortical real estate for sensory maps, language circuits, and association areas without a head the size of a beach ball.
Wrinkles are an engineering hack. Evolution folded the notebook instead of printing a bigger page.
Comments
0 comments