1. Christina Wilbur Prof. R Abdullah Spring 2011 Lymphatic and Immune System Terms

2. Phagocytosis Process of engulfing and digesting bacteria and other foreign material (“phag/o” = eat, swallow) Critical for the control of bacteria in the body Phagocytes are attracted to the infected area via chemical signals from the damaged cell or the microorganism itself Bacteria Phagocyte

3. Phagocytosis The phagocyte attaches to the bacteria through a variety of receptors The bacteria is then engulfed by the phagocyte into a vacuole called phagosome

4. Phagocytosis Lysosomes inside the phagocyte release digestive enzymes that eat away and kill the bacteria The digested contents are then removed from the phagocyte through exocytosis

5. Antibody Protective protein that is produced by the immune system when the body detects harmful substances Each antibody is unique and protects the body against one specific type of antigen Antibodies bind with the antigen to successfully remove it from the body Antibody

6. Antibody Antibodies are part of the Humoral Immunity response which produces a type of WBC called B-cells B-cells carry of the production of antibodies Antibodies combine with Antigens located on the RBC to form the antigen-antibody complex Prevent the foreign material from attacking healthy cells Send signals and targets the object for phagocytosis

7. Vaccination Form of active acquired immunity Patient is exposed to a modified or weakened version of the pathogen or virus Vaccine still stimulates the immune response without causing the disease The body is able to neutralize the modified version of the virus If or when the patient is exposed to the actual virus, the body will be able to more quickly recognize and destroy it without symptoms.