WHY DOES THE HUMAN BRAIN HAVE FOLDS?

The human cerebral cortex is folded into ridges (gyri) and grooves (sulci) through a process called gyrification, which increases surface area within the limited space of the skull.

This expanded surface enables a higher density of neurons, supporting complex cognition.

Although the precise mechanisms remain under investigation, the leading explanation-differential tangential growth-suggests the outer cortex grows faster than inner layers, generating compressive forces that produce folding.

Folding patterns are non-random, species-specific, and functionally linked to cortical organization.

Understanding gyrification has important implications for neuroscience, particularly in diagnosing and managing neurodevelopmental and neurodegenerative disorders.

#TheScientist