Nervous System The nervous system consist of all the nerves the body has. Controlling not only the actions the body takes but the emotions a human being feels. The spinal cord, brain, and many nerves revolve around the nervous system. There are three overlapping functions that use millions of sensory receptors, that monitor the body. By monitoring the body the functions detect any changes the human body has had. Two components separate the nervous system allowing us to focus on certain parts of the body. The central nervous system focuses on the brain, spinal cord, and nerves.
The peripheral nervous system consist of sensory neurons, ganglia (clusters of neurons), nerves that connect to one another1. There are also two subdivisions that the nervous system focuses on. The autonomic which focuses on the blood pressure and breathing rate. As well as the somatic which focuses on the nerves that connect the brain and the spinal cord. The central cord allows the nerves to travel from the brain to the rest of the body, as well as pass through the branch to allow the body to move. The peripheral connects the all the central nervous system to every organ and are of the body.
An example of the role the nervous system plays would be the use of a cell phone. The need to make a call to a person across the world, people who connect trough a simple text message in a matter of seconds as long as both individuals have signal. If one side has bad reception the other individual may not get their response until the signal is found. The nervous system works in a similar way, the brain receives a message which allows an individual to move their fingers, without needing think much about it. If a person has problems with their nervous system the body can take time to react to the sudden ut of place feeling.
By using the neurons (brain cells) the body receives a signal through thin fibers called axons. Synapse (which are released from axons) gives off a command to the cell| to make the body move. Sensory neurons take action through the five human senses, touch, sight, taste, smellI, and hearing. By taking the information around the central nervous system gets an image of its surroundings. The nervous system has three nerve tissues that help send impulses to other neurons, the motor, sensory, and connective tissue. The central nervous system (which contains the nerves, brain, and spinal cord) is the ne I will mainly focus on.
The brain is divided into five sections, the frontal lobe being part of one of the five. Around one hundred neurons occupy the brain, every single one of them is important. After many researchers the brain has been labeled as one of the most challenging organs. Weighting at only three pounds. The brain is full of nerves that interact with one another through both chemical and electrical ways. One of the main things the brain does is store memories; as well as language, emotion, perception, and other complex activities.
The brain is protected by meninges that surround the membranes, the ranium (skull) protects the meninges giving the brain even more protection. The brain also has two deep excessive folds and furrows, and is divided into two hemisphere’s by a longitudinal fissure. The frontal lobe (one of the five important brain parts) is the brain function in charge of the emotions, personality, mortality, intellect, and speech. The biggest part of the brain, the cerebrum, is the one who senses the amount of pain the body withholds.
According to CEO of neuromatrix, there are one-hundred million who suffer from pain2. The nervous system can get many diseases these being a few, ultiple sclerosis, Alzheimer’s, epilepsy, stroke, and aphasia. There are some things to keep in mind while thinking of these diseases. Identifying a disease, beginning to understand what effect dead brain cells can have, protecting nerve cells from environmental destruction and understanding how the brain chemistry affects mood and mental health3. the brain can get are bad although my main focus is Alzheimers.
Alzheimers is degenerative disease that attacks the brain, and results in impaired memory, thinking, and even behavior. Alzheimers affects an estimate of four million American adults, All diseases t is also one of the most common dementia (loss of mental function) more than 150,000 million die yearly. Alzheimer’s is the fourth most common death in adults after heart disease, cancer, and strokes. One of the main reasons a person develops this disease is due to the other certain extinction of certain brain cells 20 percent of Alzheimer cases are inherited.
Signs and symptoms a person should be aware of are memory loss, ability to follow daily routines, impairment of judgement, disorientation, personality change, difficulty learning, and loss of language skill. Eventually an individual with this disease stops aring about their appearance and health, not caring about themselves the least. These sudden changes in a person can cause the person around them to not only feel alert but to be cautious, the sudden personality change is something to be cautious about.
The person will not necessarily remember acting any different, or will simply shrug it off and believe it is due to stress. An MRI or a PET Scan can help doctors see what is wrong with the individual getting these symptoms. An MRI is a test that uses a magnetic field and pulses of radio wave energy to make pictures of organs4 . The MRI will help see if the brain has had any brain damage. An MRI has not exactly helped detect Alzheimer’s although it does scan and produce a photograph of the brain. A PET Scan may help detect Alzheimer’s, by using radio-actives to highlight amyloid protein plaques in the brain.
PET Scans help doctors diagnose individuals with Alzheimer’s earlier and can help them by giving them medication. Although after many years a cure for Alzheimer’s has yet to be found, the fact that a nerve cell cannot reproduce the cell is lost. Due to the loss of the dead cell the brain begins to have problems, many cientists have done research to try and discover a cure to this disease; or a way to reproduce cells, as well as try to protect them. Doctors prescribe medication to help the individual, by lessening the symptoms the individual may have.
A persons brain cannot be examined completely, therefore, a full diagnoses of the brain cannot be made until the individual has perished. For a full diagnosis of the brain, the persons brain must be dissected if any to see what other disease if any can be found. As the human population rises the amount of people getting diagnosed with Alzheimer’s is higher. Due to the fact that o cure has been found for the disease some individuals are being tested with certain drugs, in hopes to see if the drug will help slow the process of the disease.
Eleven rules have been said to be followed to help a person from damaging its brain and brain cells. Ten signs have been published to aware a person of possible symptoms to be aware of5 . One of the signs to be aware of is quite obvious, to be aware of sudden memory loss, another is the change of personality. For example, a person who was once shinning brightly, is now glooming like a saddened cloud. With these signs a person can be checked and iagnosed at an early stage in hopes of slowing down the process.
Gene engineering and manipulation is said to believe that it can restore the loss function. Turning the old into new, allowing the functions to work as before. Turning the old into new, allowing the functions to work as before. The nervous system is very important for it allows us to think, move, feel, eat, and much more. The nervous also comes with many diseases, some with cures others without. Alzheimer’s is one of many, most elderly adults tend to get this disease, one can only hope that throughout time a cure can be found.
