to neutrophil granulocytes , [ 2 ] the most abundant of the granulocytes. Granulocytes or PMN are released from the bone marrow by the regulatory complement proteins. Contents 1 Types of granulocytes 1.1 Neutrophils 1.2 Eosinophils 1.3 Basophils 2 Granulopoiesis: the Genesis of Granulocytes 3 Toxic materials produced or released 4