Blood.docx - Blood Clotting Plasma liquid of the blood and...

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Blood & Clotting - Plasma: liquid of the blood, and everything else is either cells or cell fragments. (least dense) - We can spin the blood and separate it by density . This gives us the relationship among different parts of the blood. Little more than half is plasma, and little less than half is packed red cell volume=hematocrit= RBCs. - Hematocrit- % of RBC in the blood (densest) - Buffy coat: WBCs + platelets (middle dense) - More RBCs= carry more oxygen. Triathletes will have a higher hematocrit because of the high oxygen demand, we would increase our RBC supply. A person diagnosed with anemia, is diagnosed with having a very low hematocrit few RBCs feeling tired not enough oxygen to muscles and brain. - If we have a very high hematocrit (less liquid and more blood), this would change the viscosity of our blood. This would increase our TPR, and overall increase in MAP. Plasma composition: - 90% water - Has dissolves solutes, electrolytes, dissolved nutrients and waste products - Plasma proteins (made by liver, which help in osmotic gradient) main osmotic blood regulator (hold water back). Some have immune functions. Some are responsible for transporting lipophilic things.
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