Chapter 20: The Immune System The immune system has two intrinsic systems: 1. Innate (nonspecific) defense system 2. Adaptive (specific) defense system The immune system is a functional system rather than structural; there are no specific immune system organs Pathogen: a disease-causing agent; anything foreign in our body that causes disease Three lines of defense: 1st: external barriers 2nd: several non-specific defense mechanisms 3rd: immunity‚ specific resistance to disease
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phagocytosis. 3. Jason’s physician noted that Jason’s cervical lymph nodes were enlarged‚ a condition referred to as lymphdenopathy. Describe the structure and function(s) of lymph nodes‚ and list the other organs and tissues that comprise the lymphatic system. 4. Describe the anatomic location and function of tonsils. 5. What is the mechanism by which fever is induced and what are its benefits in terms of combating an infection? 6. What is the mechanism by which the number of circulating white blood
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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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Cert_Bio II - Body Defence 93 39. Which of the following are concerned with the prevention of bacterial infections in different parts of the human body? Alimentary canal Respiratory tract Blood A. digestive enzymes hair white blood cells B. mucus cilia red blood cells C. acid mucus blood platelets D. bile salts mucus white blood cells 94 Directions: Questions 48 and 49 refer to the graph below which shows the changes in the concentration of antibodies in the blood of
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1. The pediatrician described Jason’s pharynx‚ uvula‚ and tonsils as swollen and red. What are the four cardinal signs of inflammation‚ and how does each relate to changes in the blood vessels at a site of inflammation? Heat‚ redness‚ swelling and pain and according to the book loss of movement in in a joint. The damaged or in this case the infected area is inundated with phagocytes (neutrophils and macrophages) and what is called complement is activated and if the classical pathway is used that
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: Azmawida bt Abdullah General Purpose : To Inform Specific Purpose : To inform my audience about the benefits of honey to health. Central Idea : The health benefits of honey are‚ it is nature’s energy booster‚ a greet immunity system builder and it is a natural remedy for many ailments. Introduction I. Today I would like to share with you all ladies and gentlemen about the benefit of honey. In Al-Quran in surah An- Nahl‚ ayat 68-69 the meaning is "And your Lord revealed
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infection and protect against diseases caused by infectious agents. It works against a specific disease by training the immune system to rapidly recognize and eliminate the infectious agent that causes that disease‚ thus resulting in immunity. Protection can be acquired either by passive or by active immunization.Passive immunization involves transfer of antibodies obtained from an immune donor to a nonimmune individual and results in temporary immunity. Currently‚ antibody-based therapies represent a
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Research into the effects of stress on the immune system There have been various studies into the effects of stress on the immune system. Kiecolt-Glaser researches this by looking at how quickly wounds heal. She used 13 women aged 47-81 who cared for Alzheimer’s and Dementia sufferers. They had naturally occurring high stress levels‚ and this is why she chose them. The women were matched with volunteers for maximum similarity (the matched pairs design). Kiecolt-Glaser tested all the women’s
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The role of the immune system in Parkinson disease Last semester‚ I took a class with Professor Jia Shi‚ Pathophysiology of Disease‚ and we covered the role of the immune system in many diseases and in our body. This phenomenal system‚ the immune system‚ defends us when we are awake and asleep. It works around the clock without rest to keep all the invaders away like bacteria and viruses. Scientifically at the molecular level‚ there are proteins called Cytokines that are produced by
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swellings on mucous membranes. The disease itself is caused a bacillus called Mycobacterium tuberculosis and mainly affects the lungs‚ however the central nervous system‚ the lymphatic system‚ the circulatory system‚ the genitourinary system‚ bones‚ joints and even the skin also has a chance of being affected. Our body’s immune system responds to this infectious disease by having a group of white blood cells to try to identify the disease causing bacterium and destroy it. Another way our body responds
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