The statements given below are incorrect. Rewrite the correct statements by changing the underlined words of the statements.

Gyri and sulci are the folds of cerebellum.

The cerebrum:

1. The cerebrum is the most important region of the human brain.
2. The left and right hemispheres of the cerebrum are separated into two halves.
3. The cerebral cortex is a layer of cells that covers the cerebral hemisphere and has a distinct look with many folds, ridges, and indentations.
4. The gyrus is a ridge or folds in the brain, while a sulcus is an indentation or depression.
5. The wrinkled appearance of the brain is due to gyri and sulci.
6. As a result, the accurate statement is: Gyri and Sulci are the folds of cerebrum.