immune response

• phagocytes- engulf and destroy

  • attacks foreign antigens
  • host antigen- indicates to phagocyte that is belongs
  • non specific- engulf and destroy anything without the host antigen
• lymphocytes:finds pathogen it matches too with the host antigen and produces anti bodies

  • anti Bodies- sticky, neutralises pathogen and prevents it from producing toxins
  • causes it to stick to other pathogens and clump together
  • makes it easier for phagocyte to find, engluf and destroy
  • specific:targets specific pathogens
• vaccination: weakened or dead version of a virus

  still has antigens, body defeats it and creates memory lymphocytes against it
• memory lymphocytes:if same pathogens enters body, produce antibodies faster and defeat illness quicker

  HOWEVER: if mutation of that virus occurs memory lymphocytes cannot work
• key words for 6 marker

  phagocytes -->non specific

  engulfs and destroys

  foreign antigens

  lymphocytes -->specific to which pathogen it attacks

  produce anti bodies

  memory lymphocytes