This is for the one who is having brain

There is nothing great about earth except man, there is nothing great about man except his mind.

Let us know something about our human brain.

Human brain is divided into three parts as per a neuro scientist who compared human brain to that of animals.

The first part of the brain is a structure at the top of the spinal cord, including portions of the brain's stem. This resembles the brain of reptiles called Reptilian. This regulates breathing, heartbeat, muscle movements are other basic instincts.

The second part is the limbic system which is well developed in all mammals but not in reptiles and contributes to the additional qualities like snarling, purring, growling, showing affection and guilt, hence this section is called the Mammalian Brain.

The third part is the outer bulges of the cerebrum and the overlying cerebral cortex which is the Reasoning Brain.

The human cerebral cortex is further distinguished by its folds, valleys and ridges which increases the surface area of the cortex and allows maximum area of grey matter to be packed wihtin the confines of the skull. The power of speech, observation, analysis etc. makes humans different from the other living things.

The cerebral cortex is covered by grey tissue containing billions of neurons whioch is called 'grey matter'. We often term intelligent people as having more grey matter. Botanically this is not true because a person with more grey matter, need not necessarily be more intelligent.

Messages from the brain are sent, received and stored by a wonderful network of nerve cells that employ a unique blend of chemistry and electricity yet to be duplicated by man. Brain is divided into four lobes by phrenologists and each lobe has a specific function. One lobe can take over the funciton of another, if it is damaged.

Hypothalamus is the Brain of the Brain and surprisingly this is no bigger than the tip of your thumb, yet it rules the entire endocrine system. The endocrine system is a collection fo ductless glands throughout the body that secrete hormones diretly into the blood stream. These glands include the pituitary, thyroid, thymus, adrenals, pancreas, ovaries and testes. Their job is to control the internal envirnment of eah organ and cell fo the body.

A meger task of lifting the hand involves millions of messages sent via billions of nerve cells to and from your brain. The thinking part of the brain decides to lift the hand, messages go out to the motor nerves that serve your hand and these are aided through information by way of optic nerve. Life without autonomic nervous system would be a total cahos.

Ok... All of you read this essay, memorize it and write it down in a paper without seeing this. Submit it to me tomorrow.. I'll check it and give marks for you. Also i'll publish the marks in my blog.

Ungal Gavanathirkku: Yaaraavadhu ungalai paathu "Un moolaila enna kalimanna irukku" appadinnu kaetta, kobap pada vendaam.. Dhairiyama aamaannu sollunga. Because all the nerves of brain are made up of silicon. Silicon is nothing but namma ooru kalimannu. This silicon is also playing the great role in IT. Eppidi? Unga silicon cells ellathukkum velai koduthu indha kelvikku badhil kandupudichu enakku anuppavum.