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35 Cards in this Set
- Front
- Back
20-25% of co2 is transported by...
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Carbaminohemoglobin
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If co2 is not transported by carbaminohemoglobin, what does it do?
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Dissolves in plasma as bicarbonate.
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Bicarbonate converts co2 and h20 into what?
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H and HCO3
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The average lifespan of a RBC is...
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100 to 120 days
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Old RBC's are broken down where?
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Spleen and liver
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RBC's are broken down by
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Macrophages
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Macrophages seperate...
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heme from globin
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Globin is broken down into
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Amino acids to be released and reused
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Iron is split from the heme to...
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be bound to proteins, and stored for reuse.
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Unbound iron is..
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toxic
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If heme doesn't become iron, it is broken into
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bilirubin
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The liver used bilirubin to..
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Make bile and digest fats
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Bilirubin is converted to what in the intestine?
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urobiligen
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In the intesting, Urobiligen is converted into..
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Stercobilin
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What is stercobilin?
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Brown pigment of feces
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Urobiligen is converted to what in blood?
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Urobilin
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What is urobilin?
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Yellow pigment of urine
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What can urobilin cause?
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Jaundice
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How many RBC's per cubic millimeter?
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4.3-5.8
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How many RBC's total?
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25 trillion
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Who has more RBC's, males or females?
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Males
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What is hematopoiesis
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Blood cell production
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What is erythropoeisis?
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RBC production
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Where does erythropoeisis occur?
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Red bone warrow
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What is a hemocytoblast?
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Stem cell
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What do erythroblasts do?
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Produce ribosomes, starte hemoglobin production
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Normoblast--
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Most organelles and nuclues are ejected
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Reiculocyte...
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enters blood stream
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Stimulus fro increased blood cell production is
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Low o2 levels
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Why does low 02 levels increase blood cell production?
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Hemorrage, high altitude, increased physical activity
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Hematopoesis stimulates the kidneys to release...
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Erythropoeiten (EPO)
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EPO stimulates the...
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red marrow
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Testosteron enhances or worsens EPO production?
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Enhances
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Viscous blood can lead to...
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Clotting, storke, heart failure.
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How many RBC's are produced per second?
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2 million
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