A cortex is the outer layer of an organ or part of the body that controls functions.
When we talk about the brain, the cortex is what allows us to think and move. It's like a control center - it helps our brains make decisions, remember things, and even understand language. In a way, it's responsible for all the thinking we do without realizing it. If you've ever learned about brain surgery or injuries that affect motor skills, the cortex is what doctors and scientists are talking about.
The outer layer of an internal organ or body structure, such as the kidney or the brain.
