* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Download the-immune-system-part-4-teacher-notes
Survey
Document related concepts
Globalization and disease wikipedia , lookup
Adoptive cell transfer wikipedia , lookup
Sociality and disease transmission wikipedia , lookup
Vaccination wikipedia , lookup
Immune system wikipedia , lookup
Adaptive immune system wikipedia , lookup
Polyclonal B cell response wikipedia , lookup
Cancer immunotherapy wikipedia , lookup
Immunosuppressive drug wikipedia , lookup
Common cold wikipedia , lookup
Innate immune system wikipedia , lookup
Childhood immunizations in the United States wikipedia , lookup
X-linked severe combined immunodeficiency wikipedia , lookup
Sjögren syndrome wikipedia , lookup
Transcript
DISORDERS OF THE IMMUNE SYSTEM - When the immune system malfunctions - Works against body instead of fights it Allergies - unusually high sensitivity to some substance - Allergen = substance that causes allergic reaction o Foods, pollen, dust, animals Dust ; feces of dust mites Cats; saliva dried on their skin flakes - Symptoms of allergy: runny nose, watery eyes Histamine: a chemical in body that is released during injury or allergen exposure Antihistamines: drugs for allergies that reduce symptoms Severe allergies may trigger anaphylactic shock o Swelling, breathing problems, potential death o Adrenaline injection reduces symptoms (“Epipen”) Acquired Immunodeficiency Syndrome (AIDS) - AIDS is caused by the human immunodeficiency virus (HIV) - HIV attacks the immune system directly o Infects helper T cells - When body infected with other pathogens it cannot activate killer T cells or B cells o People with AIDS may die from such simple infections as pneumonia HIV Transmission - Exchange of body fluids (semen or blood) - No know cure - Many forms of the virus therefore cannot identify antigen not possible to make a vaccine - New form of virus every year - Average life span of infected person = 4-10 years - Over 40 million people have it today. Keeping Immune System Healthy - Well balanced diet - Maintain personal hygiene - Avoiding drugs and tobacco - Exercise and rest - Vaccinations - Not sharing body fluids with others