The brain is the most complex structure and function of the body, and it is also a superb, sophisticated and perfect information processing system. The total number of nerve cells in the human brain is about 1012, which is equivalent to the total number of galaxies.10 to 50 times more glial cells. The brain controls human language, thinking, feeling, emotion, movement and other advanced activities, which are closely related to the topology of neurons or clusters of neurons in the brain network It essentially determines the function of the entire brain. The text is intended to explain:. ['The physiological structure of the brain provides the basis for processing complex information.', 'The brain is rich in nerve cells and glial cells.', 'The topology of the brain network determines overall brain function.', 'The structure of the brain is exquisite, perfect, powerful and complex.']