What is the cortical suici of the brain?

Cortical sulci are the grooves or indentations found on the surface of the brain's cerebral cortex. They play a crucial role in increasing the surface area of the brain, allowing for a greater number of neurons to be packed into the limited space of the skull. These sulci, along with the raised areas known as gyri, contribute to the brain's overall structure and function, facilitating complex cognitive processes. Their patterns can vary among individuals and are important in neuroanatomy and brain mapping.