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Next Review Session is: @ :15
Date: June, period 1 Aim # 85: What are the structures and functions of the human immune system? HW: Test Friday 6/2 (Regents MC!) RRB pages due Friday Castle Learning (QUIZ #5) due next MONDAY Do Now: Next Review Session is: @ :15
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Disease Disruption in the maintenance of homeostasis
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Inheritance Pathogens Pollutants Organ malfunctions Lifestyle choices
Causes of Disease Inheritance Pathogens Pollutants Organ malfunctions Lifestyle choices
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Inheritance Genetic: Passed down from parents Sickle cell anemia
Hemophilia
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Pathogens: disease- causing organism
Bacteria: bronchitis Protist: malaria Fungi: athlete’s foot
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Pollutants Biological: molds, mildew, animal dander, mites
Can cause asthma Chemical: lead Can cause learning disabilities, behavioral problems, seizures, coma, and even death.
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Organ Malfunctions Heart attack Kidney failure
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Lifestyle Choices HIV/AIDS STD’s Lung Cancer Skin Cancer
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First-Line Defenses Physical and chemical barriers
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Skin and membranes: block most pathogens from entering body
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Sweat, tears and saliva:
contain chemicals that kill or inhibit some bacteria
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Mucus: entraps pathogens
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Stomach acid: destroys many pathogens in food
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Second-Line Defenses
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Inflammatory Response
Damaged cells send out chemicals Swelling, redness, warmth, and pain
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Macrophages (big eaters)
Giant white blood cells that ingest pathogen
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Third-line Defenses The immune system
Recognizes, attacks, destroys, and “remembers” pathogens
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Brain Pop: Immune System ~ 3 minutes
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Antigen Any substance that can cause an immune response
Ex: viruses, microorganisms
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Lymphocytes White blood cells that recognize specific antigens
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Types of Immunity
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Active Immunity Get disease or vaccination
Vaccination: dead or weakened form of the disease organism or its products Body produces its own antibodies to attack a particular antigen
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Brain Pop: Vaccines ~ 4 minutes
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Inborn Immunity Form of active immunity Present at birth
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Passive Immunity Given from an outside source Temporary
Ex: breast milk
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Allergy immune response to something that is really harmless
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HIV virus that causes AIDS; targets WBCs
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Brain Pop: Disease, Injuries, and Conditions (AIDS)
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Organ transplants: put on drugs to decrease the immune response so they don’t reject the new organ
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Antibodies and antigens are SPECIFIC. What other molecules are specific?
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What type of cell is Cell A?
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What cells (A,B,C) are part of your immune system?
What cell is the pathogen?
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