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Lymphatic and immune system

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Lymphatic and immune system

  1. 1. Lymphatic and Immune System
  2. 2. The lymphatic and immune system consist ofvery special functions that assist withprotecting the body from foreign agents.Here you will learn 3 medical terms that giveinsight about protective functions within thetwo body systems
  3. 3. The first term is antigenAn antigen is a pathogen or substance that thebody recognizes as foreign.When the body recognizes a pathogen hasmade a invasion the immune response is thenstimulated.
  4. 4. The second term is antibodyAn antibody is protein the body sends out inresponse to the antigens. The antibodies job is toidentify and neutralize the foreign invader.In the event the body comes in contact with thesame invader again the immune system willrecognize it and the body will be immune. This isreferred to as humoral immunity.
  5. 5. The final term is vaccinationA vaccination is a method where a pathogenthat has been weakened is injected into aperson. This allows antibodies to familiarizethemselves and protect the body from thatspecific pathogen in the future. This is calledacquired immunity.
  6. 6. Review of terms• Antigen - Foreign pathogen• Antibody- Identifies and neutralizes pathogens• Vaccination- Weakened pathogen injected in to a host to acquire immunity
  7. 7. Thank You! E. Meredith

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