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The brain

A brain is delicate organ present in our head inside a bony box. All the intellectual activity that we perform like- Hearing, seeing, walking,etc are performed by our brain. Brain is made up of neuron tissue. Brain is a perfect example of evolution what is brain of our ancestor and what is a brain of homo sapiens. A brain is consist of mainly three parts- Fore brain, Mid brain and Hind brain. Fore brain is a part where all the process of voluntary action take place like walking, talking,etc. In fore brain there is region which receive sensory impulses from various receptors. Separate areas of fore brain are specialized for voluntary action. There are separate areas of association where this sensory information is interpreted by putting it together with information from other receptors and that is already stored in brain. Based on this all this, a decision is made. All the involuntary action take places at hind brain and mid brain. Many of this involuntary action including blood pressure, heart beat,etc are controlled by medulla of hind brain. Other action like balance of our body and posture is maintain by cerebellum.