Brain is the most complex organ in a living organism.It is surrounded by skull. It is located in the center of the nervous system. In human it is estimated that it contain 15–33 billion neurons. Its function is to exert centralized control over the other organs of the body. It is the only memorizing unit in our body.
To Read More: http://en.wikipedia.org/wiki/Brain
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Brain is the most complex organ in a living organism.It is surrounded by skull. It is located in the center of the nervous system. In human it is estimated that it contain 15–33 billion neurons. Its function is to exert centralized control over the other organs of the body. It is the only memorizing unit in our body.
To Read More: http://en.wikipedia.org/wiki/Brain
Brain is a nothing but thinking