An image from a bone marrow smear showing an orthochromic normoblast (center) ejecting its condensed nucleus seen in a patient with a normal bone marrow (50X oil immersion).
An image from a bone marrow smear demonstrating a pronormoblast (center) with a round nucleus and basophilic cytoplasm (100X oil immersion). A group of erythroid precursors are also found (top-right).
An image from a bone marrow smear showing two orthochromic normoblasts (center-right) beside a polychromatic normoblast (center-left) seen in a patient with a normal bone marrow (100X oil immersion).
An image from a bone marrow smear demonstrating two metamyelocytes beside a blast and neutrophil band (center) found in a patient with normal bone marrow (50X oil immersion). Other cell granulocytes and erythroid precursors can be seen surrounding the central cluster