Multiple sclerosis is a chronic‚ progressive‚ degenerative‚ auto immune disorder of the central nervous system characterized by the disseminated demyelination of the nerve fibres in the brain‚ spinal cord‚ and optic nerves (Lewis‚ 2014). The protective covering of the nerves‚ known as myelin‚ is attacked by the disease‚ causing inflammation and damage ("Multiple Sclerosis Society of Canada‚" 2015). Myelin is made up of Schwann cells‚ and facilitates the transmission of nerve impulses. According to
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The immune system is made up of many interdependent cell categories such as cells‚ proteins‚ tissues‚ and organs that work together to protect the body. Several of these cell categories partake in a particular function. “The cells of the immune system can engulf bacteria‚ kill parasites or tumor cells‚ or kill viral-infected cells (The Immune System and Primary Immunodeficiency‚ n.d.)”. The immune system is a great teamwork among cells and proteins that work together to deliver defend against infection
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A. Case Study 1-At Risk for HIV Disease- Answer all 7 questions after reading and reviewing the case studies and looking up key concepts and terms. 1. E.M. has gonorrhea. Why should you be concerned about the presence of other sexually transmitted diseases? Because of his sexual history and contraction of an STD‚ this suggests that he doesn’t use protection and therefore he is at risk for contracting HIV and then passing it on to others because it can be transmitted within a few days after
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Enhancing Our Immune Systems The immune system needs to be boosted from time to time to protect us from harmful illnesses and even the common cold. Luckily‚ the vitamins and proper health care of our bodies can provide many natural solutions to keep our immune systems healthy and strong throughout our lives. Immune system boosters create more white cells so our system can fight against illnesses and diseases. There are nutrients and supplements you can take to give your immune system a boost
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THE IMMUNE SYSTEM Definition of the Immune System The human immune system is a collective network of tissues‚ glands‚ and organs that work in a coordinated effort with each other to guard our bodies from foreign antigens such as viruses‚ bacteria‚ and infection causing microorganisms. For the immune system to work properly‚ two things must happen: first‚ the body must recognize that it has been invaded‚ either by pathogens or toxins or by some other threat. Second‚ the immune response must be
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After any injury‚ it is a natural response that the immune system will trigger it inane or adaptive immune to protect or limit the injury to it body. The adaptive immune response is antigen-specific and requires the recognition of specific "non-self" antigens during a process called antigen presentation. B cells and T cells are the major types of lymphocytes in the immune system. However‚ when an adaptive immune response develops against self-antigens autoimmune response occurs with the characteristic
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John Frelinger Dr. Travis Organic Evolution 30 April 2012 Evolution of the Immune System Animals are constantly bombarded by an immensely varied array of disease causing pathogens including bacteria‚ fungi‚ viruses and other parasites. The number of microbes living in the human body outnumber the actual human cells by a factor of 10‚ and for every single species of animal and plant on Earth‚ there are viruses that infect them. With the unrelenting threat of disease-causing pathogens all around
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| 1‚ 4 | Module-2(Week of Aug. 26) | Cellular Function * Genetic and developmental disorders * Neoplasia | 6‚ 7 | Module-3(Week of Sept. 2) | Alterations in the Immune and Inflammatory Response * Inflammation and immunity * Alterations in immune function | 9‚ 10 | Module-4(Week of Sept. 9) | Alterations in the Immune and Inflammatory Response * Malignant disorders of white blood cells * Unit-1 Exam * Unit-1 Case Study | 11 | Unit-2 | Module-5(Week of Sept. 16) | Alterations
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Chapter 21‚ Immunity Pathogens: A disease-producing microbe Immunity: The state of being resistant to injury‚ particularly by poisons‚ foreign proteins‚ and invading pathogens. Susceptibility: the lack of resistance to injury‚ foreign proteins and invading pathogens Innate immunity includes external physical and chemical barriers (skin and mucous membranes) and various internal defenses (phagocytes‚ natural killer cells‚ antimicrobial proteins); It does not involve specific recognition of a microbe
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Immune-Compromised Host: What Can I Do to Fight Pneumonia? Pneumonia is an infection causing inflammation of the air sacs in one or both lungs. The air sacs may be filled with pus or fluid resulting to cough with phlegm or pus‚ chills‚ fever‚ and difficulty breathing. Bacteria‚ fungi‚ viruses‚ and a variety of organisms can cause pneumonia. But what if you are an immune-compromised host? When you already have a weakened immune system and you get pneumonia‚ it is called “pneumonia in an immune-compromised
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