Make up less than 1% of white blood cells These specialised cells combat parasitic or fungal invasion, & also play a roll in allergy Normal range = up to 0 15
0 5-1% of leukocytes -- Phagocytes that release histamine and heparin to increase capillary permeability and increase blood flow to area
are a type of granulocytes with large basophilic granules that contain histamine They are not phagocytic
Granular leukocytes characterized by a relatively pale-staining, lobate nucleus and cytoplasm containing coarse, dark-staining granules of variable size and stainable by basic dyes