الفهرس 
INTRODUCTIONOnly 14 pages are availabe for public view
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Abstract
The brain is not only important as the site of reason and intelligence, it is also the source of cognition, emotion, memory, and motor, and other forms of learning, and it controls and coordinates most sensory systems, movement, behavior, but it also controls homeostatic body functions such as heart rate, blood pressure, fluid balance, and body temperature. Some behaviors such as simple reflexes and basic locomotion can be executed under spinal cord control alone.Most brains exhibit a visible distinction between grey matter and white matter. Grey matter consists of the cell bodies of the neurons, while white matter consists of the fibers (axons) that connect neurons. The axons are surrounded by a fatty insulating sheath called myelin, giving the white matter its distinctive color. The outer, visible layers of the brain are the cortex, and consist mainly of grey matter.