named different types of blood cells. microbiology poster for education, classes, biology lessons. scientific

blood cell red white erythrocyte platelet leukocyte stem lymphocyte neutrophil monocyte eosinophil basophil killer helper tcell megakaryocyte reticulocyte lymphoblast myeloblast macrophage mast mastcell natural dendritic osteoclast myeloid lymphoif set pack collection hand drawn sketch engraving ink pencil vector icon human system thrombocyte line art immune type named circulatory types cells microbiology poster education classes biology lessons scientific style cells lessons style