|Plasma Composition ||55%plasma; 7% proteins; 1% other solutes; 92% water|
|Plasma Proteins ||Albumins (60%) - transport lipids; steroid hormones, major contributor to osmotic presure of plasma.
Globulins (35) - transport ions, hormones,lipids, immune function.
Fibrinogen (4) - clotting system. converted to fibrin,
reg. proteins - enzymes etc|
|Blood Type ||Type A, B, AB and O.Type A = surface A antigen, B antibodies;Type B = B antigen, A antibodies;Type AB = A and B antigen, no antibodies;Type O = no antigen, AB antibodies|
|Rhesus Factor ||Rh neg. woman delivers first Rh+ child,fetal + mat. blood mix when placenta breaks down. Rh+ blood sensitizes mother to start producing Rh+ antibodies so during SECOND pregnancy of Rh+ fetus. mat antibodies attack fetal blood cells = hemolytic disease|
|Vascular Phase ||local contraction of a vessel= vascular spasm.
decreases diameter of vessel at site of injury. slows/stops loss of blood thru wall of small vessel. vascular spasm lasts 30 min = vascular phase|
|Vascular Phase II ||-endothelial cells contract and expose underlying basal lamina to blood stream
-EC release chemical factors and local hormones (stimulate smooth mus contractions and division of endothelial cells to repair)
-membranes become sticky (so platelets can ath|
|Platelet Phase ||-platelet adhesion to surface then platelet aggregation as more platelets stick together which forms a platelet plug|