The Human Brain :: essays research papers

mental institutionThe human body is divided into umteen different part called organs. alone of the move are controlled by an organ called the headspring, which is located in the head. The thinker weighs about 2. 75 pounds, and has a whitish-pink appearance. The brain is made up of many cells, and is the control centre of the body. The brain flashes messages out to all the early(a) parts of the body. The messages travel in very fine threads called nerves. The nerves and the brain make up a system somewhat like echo poles carrying wires across the city. This is called the nervous system. The nerves in the body dont just unhorse messages from the brain to the organs, but similarly send messages from the eyes, ears, skin and other organs back to your brain. Some nerves are linked directly to the brain. Others puzzle to reach the brain through a sort of power eminence down the back, called the spinal cord. The brain and spinal cord make up the central nervous system. The bra in doesnt just control your organs, but also can think and remember. That part of the brain is called the mind. PROTECTING THE BRAIN cardinal bones make up the skull. Eight of these bones are fight plates. These plates form the cranium. The cranium provides maximum protection with minimum weight, the ideal combination. The other twenty bones make up the face, jaw and other parts of the skull. Another way the brain keeps it self safe is by belongings itself in liquid. Nearly one fifth of the origin pumped by the heart is sent to the brain. The brain then sends the blood through an conglomerate network of blood vessels to where the blood is needed. Specialized blood vessels called choroid plexuses publish a protective cerebrospinal fluid. This fluid is what the brain literally floats in. A third protective measure taken by the brain is called the blood brain barrier. This barrier consists of a network of unique capillaries. These capillaries are filters for poisonous chemicals c arried by the blood, but do allow oxygen, water and glucose to enter the brain. THE contrastive SECTIONS OF THE BRAINThe brain is divided into three main sections. The area at the front of the brain is the largest. Most of it is known as the cerebrum. It controls all of the movements that you defend to think about, thought and memory.