ARTS1691 - Cerebral Cortex

The cerebral cortex is the last to develop in evolution. It is the biggest part of the human brain, and deals with advanced processing (e.g. language).

This is how we rank intelligence of animals (not by size, but by what percentage of the brain is the cerebral cortex).
Humans have the largest percentage, and reptiles (for instance) have no cerebral cortex.

The cerebral cortex is a wrinkly, grooved tissue that fits over the rest of the brain. It is wrinkled because it is folded in on itself, and 65% of it is hidden as such.

The cerebral cortex is split into two types: sulci and gyri. We care about the sulci, the folded in tissue. Deep folds are called fissures.