Home » Languages » English (Sr. Secondary) » Essay, Paragraph or Speech on “Human Brain” Complete English Essay, Speech for Class 10, Class 12 and Graduation and other classes.

Essay, Paragraph or Speech on “Human Brain” Complete English Essay, Speech for Class 10, Class 12 and Graduation and other classes.

Human Brain

The human brain is a highly evolved organ that acts as the control point of the human body. All animals have a brain that controls their actions. Animals having backbone have a more complex brain. Humans have highly developed brain that is superior to other organisms in terms of thinking and organized behaviour.

The human brain is most complicated and delicate organ of the body. Actions and reactions of the body are controlled by the brain. The brain is like a computer because it does many things that a computer can do. It can also do certain things that a computer cannot do. This can be explained form the fact that a computer cannot produce a story or a poem, but a human being can write both with the help of thinking power of the brain.

The brain is located inside our head. It is very important organ of human body because it helps in sensing various things, helps in communication and can issue orders that control all the other organs of the human body. Brain can get hundreds of impulses in a single second. These impulses travel at a speed of several hundred kilometers per hour. With the same speed, the brain sends impulses to our feet.

The size of the brain varies. Normally the brain size in men is bigger than in women. It is estimated that the normal human brain weights around 1.5 kilograms.

The brain is well protected inside the bony skull. A layer of liquid cushions the brain against shocks. The outside of the brain is full of wrinkles. The largest part of the brain is cerebrum. It controls all the-intelligent activities. The back of cerebrum controls the sense of vision and the front areas control thinking activities. Cerebellum which is below the cerebrum is highly developed part of the hidden brain. It maintains the posture and the equilibrium of the body. Medulla obligation is at the lowest part of the brain. The spinal cord receives sensory information from the sense organs and sends it to the brain. It also receives orders of the brain and sends it to the muscles. Eye blinking, pupil contraction, pulling hand away from the hot or cold objects are the examples of reflex action.

The brain has the ability to take quick decisions. It takes only a tiny fraction of a second to receive the impulses, co-ordinate them, sort out the important from the unimportant, make a decision and send out the needed orders. Our brain can memorize things that we have earlier experienced and learn. It has the ability of recalling various things learned earlier. It is the most amazing organ of our body that God could have ever given to us.

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