Definition
The cortex is the outermost layer of an organ or structure, like the bark of a tree or the outer part of the brain. π§ It's responsible for a variety of functions depending on its location. In the brain, the cerebral cortex handles higher-level thinking. π‘ In the adrenal gland, the cortex produces hormones. Essentially, it's the surface area where important processes occur. It acts as a protective and functional layer.