BRAIN - WHO AM I ??

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Compared to me, other wonders of the universe pale into insignificance. I m a one and a half kilo mushroom of gray and white tissue of gelatinous consistency. No computer exists that can duplicate all my myriad functions. My component parts are staggering in number : some 30 billion neurons and 5 to 10 times that number of cells. All this fitted into the crown of a size 7 hat!

People thinks that they hears with their ears, tastes with tongue, feels with fingers. All these things happen inside of me - ears, tongue and fingers merely gather information. I tell them when they are sick, when hungry ; I govern their sex urge, moods, everything. Even when asleep I continue to handle traffic that would swamp all the world’s telephone exchanges. I have thousands of housekeeping chores to perform. Overseeing breathing, for example. Sensors inform me that carbon dioxide is rising in blood and needs more oxygen. I step up the breathing rate - timing the contraction and relaxation of chest muscles.