1 / 20

Immunity

Immunity. Tina Remes Walters 2011. Vocabulary . Pathogens Disease causing organism Antigens Complex molecules that are foreign to your body. Antibodies A protein made in response to a specific antigen. It attaches it and makes it useless.

kirk
Download Presentation

Immunity

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Immunity Tina Remes Walters 2011

  2. Vocabulary • Pathogens Disease causing organism • Antigens Complex molecules that are foreign to your body. • Antibodies A protein made in response to a specific antigen. It attaches it and makes it useless.

  3. Your Bodies Defenses • First Line of Defense A. Skin B. Respiratory System cilia, mucus, cough & sneezes C. Digestive System saliva, enzymes, hydrochloric acid, & mucus

  4. Your Bodies Defenses • First Line of Defense D. Circulatory System White blood cells

  5. Specific Immunity • T Cells Special lymphocytes 1. Killer releases enzymes to destroy foreign matter 2. Helper turns on immunity B cells form antibodies 3. Memory B cells has antibodies for specific pathogens and remains in the blood.

  6. Two Types of Immunity Active Passive Antibodies that have been produces in another animal and introduced to yours. Doesn’t last long. • Body makes it’s own antibodies in response to antigens. • Lasts long.

  7. Vaccination Process of giving a vaccine by injection or by mouth a form of the antigen that gives you active immunity.

  8. Diseases • Louis Pasteur Microorganisms cause diseases in humans. Pasteurization the process of heating a liquid to a temperature that kills bacteria.

  9. Diseases • Chart on page 249 Human Diseases and their Agents • Bacteria slows down the normal growth and metabolic activities of body cells and tissues. • Viruses multiplies in the host. The host cells die. The viruses infect other cells and destroys tissues and can lead to death. • Pathogenic Protists and Fungus Infections destroys tissues and blood cells or interferes with normal body functions.

  10. Vocabulary • Koch’s Rules Steps used to identify organisms that cause diseases. • Infectious Disease A disease that is caused by a virus, bacterium, protist or fungus and is spread from an infected organism or the environment to another organism.

  11. Vocabulary • Infectious Disease (continued) Can be spread thru direct contact, water, air, on food, contact with a contaminated object and by disease-carrying organisms called biological vectors. Examples: birds, cats, rats, flies, mosquitoes etc. Human vectors people carrying the disease.

  12. Joseph Lister Found the connection between cleanliness and disease.

  13. HIV Human Immunodeficiency Virus Found in blood and body fluids Can not multiply outside of the body

  14. AIDS Acquired Immune Deficiency Syndrome Attacks the body’s immune system. HIV causes AIDS. Destroys T cells

  15. How to fight Diseases • Wash with soap and water • Exercise • Eat a healthy diet • Get enough rest • Go to the doctor for regular check ups and get your shots.

  16. Noninfectious Diseases • Diabetes • Allergies • Asthma • Cancer • Heart Disease Can not be spread or “caught”.

  17. Chronic Diseases • Can not be spread from one person to another • Last a long time. • Some can be cured, others can’t.

  18. Chronic Diseases • Allergies a strong reaction of the immune system to a foreign substance. Allergens substances that cause an allergic reaction. Your body releases histamines in response.

  19. Chronic Diseases • Diabetes Type 1 Your body doesn’t produce enough or any insulin. Type 2 Your body can not properly process the insulin. Symptoms: fatigue (tired), excessive thirst, going to the bathroom a lot, tingling sensation in the hands and feet.

  20. Chronic Diseases • Cancer uncontrolled cell growth Causes: genetic smoking exposure to chemicals the sun Prevention: limit exposure to chemicals and the sun, use sunscreen, don’t smoke healthy die

More Related