Question

Why cerebrum is having more ridges and groups?​

Answer 1

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Why cerebrum is having more ridges and groves?

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These ridges and grooves are called gyri and sulci respectively.

• They increase the surface area of the cortex for accommodation of more nerve cells in it .

So , increase in their number means increase in the number of nerve cells consequently increase in intelligence .

• The number of these convolutions (ridges nd grooves) is different for different individuals and determines their intelligence or IQ

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