Normochromic/normocytic erythrocytes

These are normal appearing mature RBCs and can be seen in normal individuals or those with certain anemias. As opposed to the immature Erythroid precursosrs which are nucleated, the mature RBCs lack a nucleus and have a central pallor that is usually 1/3 of it's diameter. The main function of the RBC is to carry oxygen through it's hemoglobin molecules.