Blood Formation - BloodFormation...

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Blood Formation Hemopoiesis (  hematopoiesis ) is the  process that produces the formed  elements of the blood. Hemopoiesis  takes place in the red bone marrow  found in the epiphyses of long bones  (for example, the humerus and femur),  flat bones (ribs and cranial bones),  vertebrae, and the pelvis. Within the red  bone marrow, hemopoietic stem cells  hemocytoblasts ) divide to produce  various “blast” cells. Each of these cells  matures and becomes a particular  formed element.
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Erythropoiesis Erythropoiesis,  the process of making  erythrocytes, begins with the formation  of proerythroblasts from hemopoietic  stem cells. Over three to five days,  several stages of development follow as  ribosomes proliferate and hemoglobin  is synthesized. Finally, the nucleus is  ejected, producing the depression in  the center of the cell. Young  erythrocytes, called reticulocytes, still 
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This note was uploaded on 12/04/2011 for the course ANTHRO 2000 taught by Professor Monicaoyola during the Fall '10 term at Broward College.

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Blood Formation - BloodFormation...

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