KINE 2011 Chapter Notes -Infectious Mononucleosis, Fibrin, Hemostasis
17 Oct 2012
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8% of total body weight is from blood (5l female; 5. 5l in males) Consist of plasma and either erythrocytes, leukocytes or platelets: rbc"s and wbc"s = whole cells; platelets are cell fragments. Hematocrit aka packed cell volume represents the percentage of erythrocytes in total blood volume (of ones body), which is around 45% in humans; wbc"s are only around 1% of total blood volume. Plasma (is a liquid which has 90% water) Mainly used for transporting o2 and a lesser extent of co2 and h ions. The biconcave disk shape of the rbc is used to create a larger surface area for diffusion of o2 and bc of its thinness, it allows o2 to diffuse rapidly bw the exterior and interior of the cell. The membrane is also able to deform so they can squeeze through the capillaries without rupturing.
