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Question
Explain the structure of the brain.
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Solution
The brain is the main control centre of the nervous system.
It is enclosed within the bony shell of the cranium.
It consists of three main part:
- Cerebrum: It is the uppermost and largest part with many ridges and grooves. It is divided into right and left halves called cerebral hemispheres. It controls our thinking, reasoning, intelligence, memory, and perception of pain, sound, touch, taste, and smell.
- Cerebellum: It is located under the cerebrum at the back of the head. It maintains the balance of the body and coordinates muscular activity.
- Brain stem (medulla oblongata): It joins the brain to the spinal cord. It controls the activity of internal organs like heartbeat and breathing.
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