Blood - Red blood cells, formed by erythropoiesis, contain hemoglobin that transports respiratory gases - RBC Formation & Turnover
5 important questions on Blood - Red blood cells, formed by erythropoiesis, contain hemoglobin that transports respiratory gases - RBC Formation & Turnover
Describe the precursors of RBCs
What are the developmental stages of RBCs
Day 2/3 -> Erythroblast stages; Basophilic -> polychromatophilic
Day 4 -> Normablast; it sheds its nucleus to become (on day 5) a reticulocyte.
Day 5-7 -> Hemoglobin synthesis; then mature RBC enters bloodstream
What is erythropoietin? When is it released?
Released during anemia, decrease in blood flow to kidneys, oxygen content in air decreases and damage to respiratory surfaces of lungs.
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What are the effects of erythropoietin?
Speeds up maturation of RBCs by accelerating Hb synthesis
What are the role of macrophages in recycling of RBCs?
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