Immune organs

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Immune organs

  1. 1. Immune Organs <ul><li>Body defense and resistance to disease </li></ul>http://www.rush.edu/rumc/images/ei_0093.gif
  2. 2. Spleen <ul><li>Filters blood </li></ul><ul><li>Located on the left side of the </li></ul><ul><li>abdominal cavity </li></ul><ul><li>Destroys worn-out red blood cells </li></ul><ul><li>Stores platelets </li></ul><ul><li>Acts as a blood reservoir (holder) </li></ul><ul><li>Most important hematopoietic site in a fetus </li></ul><ul><li>(makes red blood cells) </li></ul><ul><li>Only produces lymphocytes (white blood cells) in adults </li></ul>http://pedsurg.ucsf.edu/media/85932/img_spleen_ill.gif
  3. 3. Thymus Gland <ul><li>Functions at peak levels during youth </li></ul><ul><li>Produces hormones to program lymphocytes </li></ul><ul><li>(white blood cells) </li></ul>http://www.anatomy.tv/StudyGuides/Images/Thymus.jpg
  4. 4. Tonsils <ul><li>Ring the larynx </li></ul><ul><li>Trap and remove bacteria and foreign pathogens from entering the throat </li></ul><ul><ul><li>Sometimes too effectively: tonsillitis </li></ul></ul>http://www.besthealth.com/besthealth/bodyguide/reftext/images/tonsil.jpg
  5. 5. Peyer’s patches <ul><li>Found in wall of the small intestines </li></ul><ul><li>Similar look and function as tonsils </li></ul>http://wpcontent.answers.com/wikipedia/commons/thumb/f/f8/Peyer%27s_Patches.jpg/900px-Peyer%27s_Patches.jpg

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