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The Human Nervous System

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The nervous system is composed of all nerve tissue in the body. This organ system forms a communication and coordination network between all parts of the body. It plays a major role in everyday activities such as breathing, walking even blinking. It is made up of nerve tissues to receive and transmit stimuli to nervous centers and initiate response. Neurons are nerve cells that transmit signals from one location of the body to another. With damage to the nervous system the body would not be able to function properly. The body has to be well taken care of in order to insure proper regulation. The two anatomical divisions that work hand in hand to help regulate the nervous system are the central and peripheral nervous system. …show more content…

These two hemispheres are connected by the corpus callous. All four lobes and the protectants of the brain are all included in the cerebrum. The cerebrum is the largest part of the brain. It is characterized by learning and senses. The cerebellum is the second largest part of the brain. It is located below the cerebrum at the back of the skull. The main responsibility of the cerebellum is balance and muscle coordination. The brain stem is a vital organ that connects the brain to the spinal cord. Besides connecting the brain and spinal cord the brain stem also keeps people breathing. Sorting the messages that the brain and the rest of the body sends is also a part of its job. The brain is a fragile organ. Although it is protected by the scalp, skull and the three layers of meninges there is still a possibility that it can still be injured. Head injury occurs when an external mechanical force causes brain dysfunction. Penetrating and closed head injuries are the two major types of brain injuries. Penetrating head injuries occur when foreign objects enters the brain and cause damage to specific brain parts. Symptoms vary depending on which part of the brain was damaged. For instance Phineas Gage. A large iron rod was driven through his head, and it destroyed his left frontal lobe. It was said that it changed his personality. After the incident friends did not see him as the “old” Phineas Gage. This case caused neurologist to

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