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The identification of mature and immature blood cells in peripheral blood smears and bone marrow preparations is fundamental to the laboratory diagnosis of haematological disorders. Here, you may review the mature and immature white cells to gain more practice and confidence in their identification.
Healthy Blood-Cell Formation. In a healthy person, the stem cells in the bone marrow make daughter cells. The daughter cells go through several stages of development within the marrow. Eventually they mature into red blood cells (RBCs), white blood cells (WBCs), or platelets.These get released from the marrow to circulate in the bloodstream. The circulating cells perform important functions. 1  RBCs carry oxygen throughout the body. 2  WBCs fight infection.ventually they mature into red blood cells (RBCs), white blood cells (WBCs), or platelets. These get released from the marrow to circulate in the bloodstream. The circulating cells perform important functions. 1  RBCs carry oxygen throughout the body. 2  WBCs fight infection.