production of red blood cells
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reticulocyte
a cell that has ejected it's nucleus
proerythroblast during production of RBC
ejects it's nucleus to make room for more hemoglobin
steps to producing a red blood cell
hemocytoblast, proerythroblast, reticulocyte, erythrocyte
reticulocyte during production of RBC
more hemoglobin is produced, cell flattens and erythrocyte is formed.
proerythroblast
nucleate, filled with hemoglobin
erythropoiesis
production of new red blood cells
hemocytoblast during production of RBC
begins making ribosomes, ribosomes make lots of hemoglobin
Erythropoietin is released by
the kidneys - 90% the liver - 10% and whenever O2 content of the blood decreases
How is erythropoiesis stimulated?
when a hemocytoblast binds to the hormone erythropoietin.
