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21 Cards in this Set

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Physical elements of blood
both solid and liquid elements, 55% Plasma, PH between 7.35-7.45, Accounts for 8% of body weight. males 5-6L of blood
Hematocrit
%of erythrocytes in formed element portion of blood (remaining 45% of blood, without plasma) 45%
Red Blood Cells, RBC
4-6 million
Transport o2 and CO2, Biconcave discs, Lacks mictchondria, 5 million cells per mm3, anucleated
Hemoglobin (Hb)
Found on RBC's to transport O2, each RBC contains aprox 250mill hemoglobin molecules, each capible of binding 40 molecules of O2. Norm Bl Count 12-18Grams/100mm(ml) blood
Life of RBC
5-7 days for development, Lives for 120 days
Pernicious
Lack of Vit B12
Leukocytes
4000-11000 WBC's/mm3
accounts for less than 1% of total blood vol.
Diapedesis
ability of WBC's to slip thru cell membranes
Chemotaxis
WBC's moving to needed site
Granulocytes
Granule containing WBC's:
Neutrophils
Basophils
Eosinophils
Neutrophils
Multilobed nucleus
granulocyte
phagocytosis
used in infections
Basophils
Rarest WBC, Release HISTAMINE
Granulocyte
Eosinophils
ALLERGIC REACTIONS, and PARASITES
Granulocyte
Agranlocytes
monocytes- phagocytes
lymphocytes-secrete antibodies
Lymphocytes
Agranulocytes, tend to live in Lymph tissue, Plays role in immune response
Monocytes
Largest of WBC's, indented nucleus, macrophages with huge appetites, fight chronic infection
Leukocytosis vs Leukopenia
cytosis- over 11,000 cells/mm
penia- abnormally low WBC's
Megakaryocytes
Bizarre Multinucleated cells, pinch off thousands of anucleated platelet peices
3 Phases of Hemostatsis
-Stoppage of blood
1. Platelet formation of plug
2. Vascular spasms occur
3. Coagulation occurs prothrombin, fibrin etc
Coagulation
Clotting; Injured tissue releases (TF)tissue factor, PF3 interacts with TF, Vit K and CA, that activates prothrombin to thrombin. Thrombin joins to fibrinogen= Fibrin that traps cells and makes clot
Agglutination
Binding of antibodies cause RBC's to clump which leads to the clogging of small blood vessels throughout the body