MEDICAL PHYSIOLOGY

Detailed explanation-1: -The thin layers of cells cover the cerebral hemispheres called cerebral cortex. The elevated ridges of tissue on the surface of the cerebral cortex are known as gyri while the shallow grooves are termed sulci .

Detailed explanation-2: -The ridges are called Gyri, while the grooves are called Sulci. Sulci surround each gyrus, which acts together to increase the surface area of the cerebral cortex and form brain divisions. By increasing the surface area of the brain, more neurons may be packed into the cortex, increasing the cortex’s processing power.