Diagram of events in the migration of a neutrophil from a postcapillary venule into the connective tissue, a. Circulating neutrophils are slowed down by the interaction of their surface adhesion molecules, selectins (CD62L), with the endothelium of the venule (b). c. As the result of this interaction, the cell rolls on the surface of the endothelium. The neutrophil then adheres to the endothelium and responds to chemokines secreted by the endothelial cells, d. Their secretion induces the expression of other adhesion molecules on the surface of heparin histamines chemoattractant molecules phagosome

Fc receptor

residual body

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