The lymphatic and immune systems – 3 common
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The lymphatic and immune systems – 3 common

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  • 1. The lymphatic and immune systems – 3 common terms
    Elizabeth Gregory
    Presentation chapter 6
    Bio 120
    June 24, 2010
  • 2. The lymphatic system consists of a network of vessels that pick up excess tissue fluid, cleanse it, and return it to the circulatory system.
    Lymph vessels pick up fats that have been absorbed by the small intestine and transport them to other areas of the body.
    The immune system and the lymph system work together to fight disease and infections.
    Lymphatic and Immune System
  • 3. Immune response terms
    Antigen
    Antibody
    Allergy
  • 4. An antigen is any substance that causes your immune system to produce antibodies against it.
    An antigen may be a foreign substance from the environment such as chemicals, bacteria, viruses, or pollen. 
    An antigen may also be formed within the body, as with bacterial toxins or tissue cells
    Antigen
  • 5. An antibody is a type of protein. The body's immune system produces antibodies when it detects harmful substances, called antigens.
    In the case of an autoimmune disorder, antibodies are produced when the immune system mistakenly considers healthy tissue a harmful substance.
    Each type of antibody is unique and defends the body against one specific type of antigen.
    Antibody
  • 6. An allergy is an exaggerated immune response or reaction to substances that are generally not harmful.
    Allergies are relatively common. Both genetics and environmental factors play a role.
    Allergy
  • 7. The immune system normally protects the body against harmful substances, such as bacteria and viruses. It also reacts to foreign substances called allergens, which are generally harmless and in most people do not cause a problem.
    But in a person with allergies, the immune response is oversensitive. When it recognizes an allergen, it releases chemicals such as histamines. which fight off the allergen. This causes itching, swelling, mucus production, muscle spasms, hives, rashes and other symptoms, which vary from person to person.
    Common allergens include pollen, mold, pet dander, and dust. Food and drug allergies are common. Allergic reactions can also be caused by insect bites, jewelry, cosmetics, spices, and other substances
    Allergy cont.
  • 8. Possible Allergy Complications:
    Anaphylaxis (life-threatening allergic reaction)
    Breathing problems and discomfort during the allergic reaction
    Drowsiness and other side effects of medicines
  • 9. www.mayoclinic.org
    www.emedicine.com
    www.webmd.com
    medplus encyclopedia
    Fremgenand Frucht.Medical Terminology: A Living Language. 4th ed. Prentice Hall Publishing, 2009.
    References: