The weight of a man's brain is about two percent of his body weight. Although the brain is a small organ, it uses up to 20 percent of the body's oxygen supply. Communication and thoughts in the brain are caused by electrochemical processes. About 90% of the brain is involved in communication and 30% in thinking. Every time a new experience or memory is stored, new connections of electrical waves are made in the brain. In addition to the tongue, the stomach, intestines, pancreas, and lungs also have taste budsAbout 70% of the brain is made up of fat. The brain state forgets many unnecessary things to maintain stability and capacity. The structure of the brain changes when a person learns something new. The brain of a newborn baby has the most encyclopedias. The baby's brain consumes 70% of the food in the brain, which is why it needs more sleep. At rest the brain consumes one-fifth of the caloric energy per minute. The brain does not feel the pain of injury despite having encyclopedias.
The human brain is the central organ of the human nervous system, and with the spinal cord makes up the central nervous system. The brain consists of the cerebrum, the brainstem and the cerebellum. It controls most of the activities of the body, processing, integrating, and coordinating the information it receives from the sense organs, and making decisions as to the instructions sent to the rest of the body. The brain is contained in, and protected by, the skull bones of the head.Brain activity is made possible by the interconnections of neurons that are linked together to reach their targets.A neuron consists of a cell body, axon, and dendrites. Dendrites are often extensive branches that receive information in the form of signals from the axon terminals of other neurons. The signals received may cause the neuron to initiate an action potential (an electrochemical signal or nerve impulse) which is sent along its axon to the axon terminal, to connect with the dendrites or with the cell body of another neuron. Neuroanthropology is the study of the relationship between culture and the brain. It explores how the brain gives rise to culture, and how culture influences brain development.Cultural differences and their relation to brain development and structure are researched in different fields
The bridge regulates the action of breathing. The cerebellum maintains the balance of the body. The cerebellum coordinates the action of bodily movements, e.g. Dancing, walking, cycling etc. The cerebellum is responsible for a variety of involuntary actions, such as breathing, heart rate, blood pressure, and esophageal sphincter. The cerebellum regulates cough, sneezing, swallowing, salivation and vomiting.
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