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Blood Test
blood types and stuff
10
Anatomy
12th Grade
12/05/2012

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Term
blood types
Definition
A- anti B; can get from A and O
B- anti A; B and O
AB - anti none; A, B, and O (all)
O - anti a and anti B; O
Term
functions of blood: transport
Definition
oxygen(lungs) &nutrients(intestines) to capillaries
absorb wastes
CO(2) from blood to lungs
urea from liver to kidneys
Term
composition of blood
Definition
plasma (55%) - water, proteins, salts, gases, nutrients, urea, hormones, vitamines
formed elements (45%) - RBC, WBC, platlets (mostly RBC)
Term
characteristics of RBC (Erythrocytes)
Definition
small, biocave, no nuclei
contain hemoglobin=carrier for oxygen
arteries carry more oxygen
live approx, 120 days
Term
characteristics of WBC
Definition
larger, nucleus, lack hemoglobin
WBC count=5000 to 10,000
granular or agranular
fight disease
Term
Characteristics of Platelets
Definition
fragments of certain large cells in red bone marrow
no nuclei; half size of RBC
live apprx, 10 days
repair damage to blood vessels
initiate blood clotting
Term
antigens vs. antibodies
Definition
antigens - detect blood type = marker proteins
antibodies - substances in plasma that react w/ a foreign substance to protect body
Term
function of blood: regulation
Definition
body temperature
Term
function of blood: defense
Definition
protects against infection
Term
agglutination
Definition
foreign antigens cause RBC's to clump together
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