Talk about Eosinophils

AKA acidophils, slightly larger than neutrophils, diameter between 10 and 14 microm, nucleus made of 2 lobes joined by thick chromatin, cytoplasm contains usual organelles, a small number of azurophilic granules but numerous eosinophilic granules, rounded lysosomal. Involved in defense reactions against parasites, bactericidal and phagocytic properties, (lesser than neutrophils) participate in immediate and delayed hypersensitivity, ( IgE receptor in plasma membrane) role in regulation of histamine protein by releasing histaminase. 4-5 hours half life in blood, 8-12 days in tissues.