Matching Pairs The Immune SystemOnline version Play this game! by EMILY LECKNER 1 B Cells 2 Antibodies 3 The Inflammatory Responses 4 T Cells 5 3rd Line of Defense 6 Types of Pathogens 7 2nd Line of Defense 8 1st Line of Defense 9 pathogen The skin, mouth, stomach and breathing The Immune Response Bacteria, viruses, fungi, and protozoa An organism that causes disease Chemicals that lock onto the antigen of a pathogen and mark it Pain, redness, swelling and warmth Recognizes the different pathogens by their antigens The Inflammatory Response Produce antibodies to destroy pathogens