Aging changes in the nervous system URL of this page: http://www.nlm.nih.gov/medlineplus/ency/article/004023.htm As people age, their brain and nervous system go through natural changes. The brain and spinal cord lose nerve cells and weight. Nerve cells may begin to transmit messages more slowly than in the past. Waste products can collect in the brain tissue as nerve cells break down, causing abnormal structures called plaques and tangles to form. A fatty brown pigment (lipofuscin) can also
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Disease: (What is it? What's happening in the body?) Multiple sclerosis is a disabling disease that affects the brain and spinal cord. Multiple sclerosis affects the central nervous system the central nervous system is surrounded by what is called a myelin sheath and this sheath protects the nerve fibers in the central nervous system and when that sheath goes away in different areas then patients are left with scarring or MS. There are 4 types of MS anyone could develop in their lifetime Relapsing-remitting
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trapezius are neck muscles and can be associated with the throat. 3.2 The principal organs that comprise the nervous system are the brain, spinal cord, nerves and ganglia. These organs also consist of various tissues including nerve, blood and connective tissue. All together the organs and various tissues carry out the activities of the nervous system. The activities of the nervous system can be grouped together as three overlapping functions. The first of these functions is sensory. There
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the reader learns that the narrator suffers from “nervous depression.” This type of mental illness is incredibly dangerous when left untreated. The narrator’s only source of attempted treatment is from her husband, John, who is a physician. He tells her that she is to stay home all day and that she must not have a lot of contact with the outside world. The narrator’s only other interactions are with her sister-in-law, Jennie. One side-effect of nervous depression is severe excitement over small occurrences
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internal distribution of a force exerted on a material body which results in strain. In the 1920s and '30s, biological and psychological circles occasionally used the term to refer to a mental strain or to a harmful environmental agent that could cause illness used it in 1926 to refer to
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a derivative of cathinone, which is an alkaloid made from leaves of the Catha edulis plant. These synthetic cathinones were originally manufactured legally to mimic the effects of other stimulants including: cocaine, methamphetamine, and methylenedioxymethamphetamine (MDMA). These designer drugs produce sympathomimetic effects similar to amphetamines by increasing the synaptic concentration of dopamine, norepinephrine, and serotonin
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Running head: DRUG PROFILE PAPER Drug Profile Paper Sherita Brown Axia College of UOP Drug Profile Paper In this paper I will examine abused substances and their various effects; I will also explain the psychology and Physiology of drug addiction. Addiction begins as a high, as an illusion of being in control, but it eventually turns on the individual. The results are pathological relationships to a mood altering experience that brings negative, life destructive consequences. People
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leads to hypothyroid disease; a disease that may be characterized both in clinical and pathophysiological manifestations throughout the body system. The most prevalent causes of hypothyroid disease include various autoimmune diseases, medication for hyperthyroid disease, and having had surgery on the thyroid. Other not so common causes of hypothyroidism include certain congenital diseases, pituitary disorder, pregnancy, or a deficiency in iodine. Hypothyroid disease may be divided into primary and
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metabolisation of acetylcholine by the enzyme acetylcholinesterase. The excess build-up of acetylcholine continues to stimulate the muscles, preventing the relaxation of the muscle. This causes Chucky to be paralyzed as acetylcholinesterase is not able to break down the acetylcholine, preventing him from relaxing his muscles. Effects of curare has a time of onset of about 5 minutes, and lasts for 60-120 minutes. Due to the inability to move and relax voluntary muscles, including the diaphragm, victims of curare
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regardless of sex, race, ethnicity, or socioeconomic standing. Women are two to three times more likely than men to suffer from depression. Some depression seems to come out of the blue, even when things are going well. Others seem to have an obvious cause such as a marital conflict, financial difficulty, or some personal failure. Most psychologists believe depression results from an interaction between stressful life events and a person’s biological and psychological vulnerabilities. Depression runs
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