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35 Cards in this Set

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