Images include basophils, monocytes, eosinophils neutrophils, lymphocytes, and platelets.
Monocytes and lymphocytes may also be obtained fresh from human blood using density centrifugation to isolate distinct cell types according to their different densities.
When inflammation develops in a tissue, lymphocytes and monocytes migrate out of the blood stream and cross the endothelium.
Macrophages (derived from the circulating monocytes) may re-enter the circulation, possible via lymphatics.
These are followed by several other cell types including monocytes, lymphocytes, eosinophils, basophils and some red cells.