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How Does our body fight oFf infection???

How Does our body fight oFf infection???. Our Body’s Defenses . The First Line of Defense. Stops germs from getting into the bloodstream. Traps, repels and destroys germs BEFORE they make you sick. Five Barriers that Protect the Body. Skin – the body’s largest barrier

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How Does our body fight oFf infection???

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  1. How Does our body fight oFf infection??? Our Body’s Defenses

  2. The First Line of Defense • Stops germs from getting into the bloodstream. • Traps, repels and destroys germs BEFORE they make you sick.

  3. Five Barriers that Protect the Body • Skin – the body’s largest barrier • Mucous membranes – Found in ears, eyes, nose and throat • Saliva • Tears • Stomach acid

  4. The Second Line of Defense • Immune System • A combination of body defenses made up of cells , tissues and organs that help fight infections. • White Blood Cells • Cells that work together to warn, track down and destroy germs.

  5. 3 Types of White Blood Cells • Phagocytes • T-Cells • B-Cells

  6. Phagocytes These white blood cells send a warning that a germ (invaders) has entered the bloodstream

  7. T-Cells These white blood cells track down the invading germ and mark the germ with antibodies.

  8. B-Cells These white blood cells destroy germs and anything else marked with an antibody. Sometimes the b-cells need back-up support in the form of medicine in order to fight the really tough germs.

  9. Guided Notes Answers 1. Of all diseases the COLD is most common 2. Reasons why… • The cold is spread in many ways • The cold is caused by hundreds of different viruses

  10. Guided Notes Answers Continued 3. Another name for the flu is INFLUENZA. 6. Peak flu months are DECEMBER through early MARCH

  11. Guided Notes Answers Continued 7. CHICKEN POX gives a person an itchy rash 8. MEASLES gives a person a rash that does not itch. 9. MUMPS causes swollen SALIVARY glands

  12. Guided Notes Answers Continued 10. Mononucleosis is also known as MONO or the KISSING DISEASE. 11. This disease is characterized by swelling of the LYMPH NODES in the NECK and THROAT.

  13. Guided Notes Answers Continued 12. This disease is most common in TEENS and young ADULTS 13. Three ways that mono can spread… Kissing Sharing drinks Sharing eating utensils or toothbrushes

  14. Guided Notes Answers Continued 17. Hepatitis is a virus caused LIVER inflammation. 18. Hepatitis is characterized by yellowing of the SKIN and the WHITES of the EYES. This condition is called JAUNDICE

  15. Guided Notes Answers Continued 19. The two main types of Hepatitis are TYPE A and TYPE B 20. Type A is spread through CONTAMINATED FOOD AND WATER 21. Type B is spread through DIRECT CONTACT WITH BLOOD

  16. Guided Notes Answers Continued 22. Another name for Tuberculosis is TB 23. Tuberculosis is a bacteria caused infection that usually effects the LUNGS.

  17. Guided Notes Answers Continued 25. Tuberculosis is spread through…. WATER DROPLETS IN THE AIR CAUSED BY COUGHING AND SNEEZING

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