Erythrocyte: Usually biconcave and circular outline, devoid of a nucleus. Number in man varies between 5 and 5.5 million per cubic mm of blood. Erythrocytes carry oxygen from ...

Normal Lymphocyte on the left and Segmented Neutrophil on the right   Normal Monocyte, notice the folded nucleus and it’s big size comparing to other blood cells   Eosinophil ...