Question

on the surface of the cerebrum elevated and depressions are present.name and write the uses of it​

Answer 1

Answer:

They are called gyri and sulci

Explanation:

They increases the surface area of the brain, and hence allow easy exchange of nutrients and gases through blood vessels. They also house more number of neurons than a round brain can have

Answer 2

Name and uses are written below-

1. Gyri and sulci are the elevations and depressions present in the cerebral cortex. Gyri is the elevated part while sulci are the depressed part or groove.
2. Thus they are responsible for the wrinkled appearance of the brain.
3. The gyri and sulci hold an important function in the body, which is to increase the surface area of the brain. This further helps in increasing the information processing.
4. They are also responsible for separating the brain into two hemispheres.