NEET PG DENTAL EXAM

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.

Detailed explanation-3: -To include the extensive functional area, the cerebrum is folded into various convolutions known as gyri (Figure 2). The fissures between convolutions are known as sulci. The mean cortical surface area of the adult human brain is 2000 cm2, of which two-third is hidden in the sulci (4–5).