red arrow showing neutrophil with toxic granule

activity anatomy antigen background biology blood body care cell cells disease eosinophil eosinophils erythrocytes granules granulocyte health healthy human immune immunity immunology inclusions infection inflammation killer leukocyte lymphocyte macrophage medical medicine microbiology microscope monocyte monocytes neutrophil nucleus phagocyte phagocytic phatocytosis research response science segmented stem structure system white