The brain would not be able to fold into the skull, if it wasn't folded (wrinkled).
The cerebral cortex
Yes, I think wrinkled is an adjective, but I'm not entirely sure.
Having a wrinkled brain is good because in order for our brains to be higher functioning, they have to be big. More surface area equals more brain cells, which equals more thinking power. The brain is wrinkled so that it can have a lot of surface area, but will still fit within our skulls and be proportional to the rest of the human body. The wrinkles in our brains are there from birth, and do not change as we grow older.
Cerebrum
Your brain.
brain
It affects all of your brain because you use all of your brain to think.
cerebrum.
The structure in humans that resembles a giant wrinkled walnut and covers the upper part of the brain is the cerebral cortex. This outer layer of neural tissue is responsible for numerous high-level functions, including sensory perception, cognition, and motor control. Its characteristic folds and grooves, known as gyri and sulci, increase the surface area, allowing for a greater number of neurons and synaptic connections.
i think it's the cerebrum
The 'wrinkles' are called gyri and sulci. The best explanation is that the more there is, the more interconnections there are and the more intelligent it is. Another reason is that the brain would outgrow your head if it was not wrinkled it would outgrow your head.
The cerebrum is the largest part of the brain and is divided into two hemispheres. It has a wrinkled surface called the cerebral cortex, which is responsible for higher brain functions. The cerebrum also has four lobes: frontal, parietal, temporal, and occipital, each with specific functions.