Matching Pairs Immune System: Match the Key ConceptsOnline version Match each immune concept with its concise description to reinforce understanding of innate and adaptive immunity. by Paula 1 Cytotoxic T cell 2 Lymph node 3 The white pulp in the spleen contains 4 Peyer's Patches 5 Spleen 6 Lymphatic system 7 Neutrophil 8 T Cells 9 Antibody 10 Macrophage 11 B Cells 12 Helper T cell 13 The red pulp in the spleen contains 14 Bone marrow Cell mediated immunity Tissue phagocyte that engulfs debris and microbes Blood cell production and B cell maturation site Found in the ileum and fights infections that travel viz digestive system Secretes cytokines to activate other cells Kills pathogens (via. apoptosis) Macrophages Network of vessels and organs draining interstitial fluid Filters blood; contains white and red pulp Filters lymph Y-shaped protein that neutralizes pathogens First phagocytic defender of pathogens T & B cells Anti-body mediated