The Human Brain :: essays research papers

INTRODUCTIONThe human body is divided into galore(postnominal) different parts called organs. All of the parts atomic number 18 controlled by an organ called the learning ability, which is located in the head. The whizz weighs ab break through 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 other parts of the body. The messages travel in very comely threads called nerves. The nerves and the brain make up a constitution somewhat like telephone poles carrying wires across the city. This is called the nervous system. The nerves in the body dont exactly enthrall messages from the brain to the organs, but also send messages from the eyes, ears, skin and other organs back to your brain. Some nerves are linked directly to the brain. Others have to reach the brain through a sort of power line down the back, called the spinal anaesthesia cord. The brain and spinal co rd make up the central nervous system. The brain doesnt just control your organs, but also can think and remember. That part of the brain is called the mind. PROTECTING THE BRAINTwenty-eight bones make up the skull. octonary of these bones are interlocking plates. These plates form the cranium. The cranium provides maximum tax shelter 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-importance safe is by keeping itself in liquid. Nearly one ordinal of the blood pumped by the heart is sent to the brain. The brain so sends the blood through an intricate net income of blood vessels to where the blood is needed. alter blood vessels called choroid plexuses produce a protective cerebrospinal smooth. 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 capi llaries. These capillaries are filters for harmful chemicals carried by the blood, but do throw overboard oxygen, water and glucose to enter the brain. THE DIFFERENT SECTIONS OF THE BRAINThe brain is divided into trio main sections. The area at the front of the brain is the largest. Most of it is cognise as the cerebrum. It controls all of the movements that you have to think about, thought and memory.