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Illustrations Helper lymphocyte Suppressor lymphocyte ~ / / Killer lymphocyte Plasma cell Bacterial or Tumour cell Blood vessel lumen @ Eosinophil passing through vessel wall Neutrophil passing through vessel wall 336 KEY TO ILLUSTRATIONS ") Resting neutrophil Activated neutrophil Resting eosinophil Activated eosinophil Smooth muscle Smooth muscle thickening Smooth muscle contraction Normal blood vessel Endothelial cell permeability Resting macrophage v U ,,,.j Activated macrophage Nerve KEY TO ILLUSTRATIONS 337 Intact epithelium Damaged epithelium ~ Intact - epithelium with submucosal gland ~ e ~ Normal - submucosal gland Hypersecreting submucosal gland Normal airway Oedema Bronchospasm ~~ ~g~ ~ Resting platelet p/a~eleatt d Airway hypersecreting mucus 338 KEY TO ILLUSTRATIONS Resting. basophil Activated basophil Resting mast cell Activated mast cell Resting chondrocyte Activated chondrocyte ~ _ _ . . . - - . . . . . II~, ;"I~, ,~ ,, Cartilage Fibroblast Dendritic cell/ Langerhans cell Arteriole Venule KEY TO ILLUSTRATIONS 339 Inflamed venule Microcirculatory system