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test 3
blood
9
Pharmacology
Undergraduate 3
04/05/2011

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Term
how much blood is in the average human?
Definition
4-6 L
Term
what does blood consist of?
Definition
plasma (50-55%) and blood cells (45-50%)
Term
what are the components of whole blood?
Definition
RBCs, several types of WBCs and platelets
Term
what do RBCs do?
Definition
transport or exchange oxygen and carbon dioxide
Term
what are WBCs responsible for?
Definition
infection control
Term
what is platelet activity essential for?
Definition
blood clotting
Term
what is hemoglobin?
Definition
oxygen carrying protein
Term
what is hematocrit adn what is it expressed as?
Definition
it is the packed cell volume of RBCs. It is expressed as a percentage of the total blood volume
Term
what does MCV stand for and what does it measure?
Definition
-Mean corpuscular volume
-it measures cell size
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