ranjan

Brain - a complex organ weighing about 3 pounds in an average adult is about 60% fat, remaining 40% is a combination of Carbohydrates, Salt, Protein and Water. Brain, not a muscle contains blood vessels and nerves including neurons and cells. It controls memory, thoughts, touch, emotion, vision, breathing, motor skills, temprature, hunger and every process that regulates our body. The brain and spinal cord that extends from it make up central nervous system.  The Brain consists of three main structures - Cerebrum, Cerebellum and Brain stem. Brain communicates with the majority of body through spinal cord.  Cerebrum - Located at the front and top up of the skull is the largest part of brain which controls muscle functions, concious and unconcious behaviors, sensory information, memory and intelligence, reading, writing, learning. It comprise two types of tissues - Grey matter and White matter. Grey matter forms surface of each cerebral hemisphere associated with cognition and processing