KAAP310 Lecture Notes - Lecture 2: Thrombopoietin, Factor Xii, Leukopoiesis
7 Sep 2016
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Document Summary
Formed elements living blood cells suspended in plasma. Wbcs and platelets in buffy coat (< 1%: hematocrit. Percent of blood volume that is rbcs. 47% 5% for males; 42% 5% for females. High o2 - scarlet; low o2 - dark red ph 7. 35 7. 45: ~8% of body weight, average volume. 5 6 l for males; 4 5 l for females. Distribution function: delivering o2 and nutrients to body cells, transporting metabolic wastes to lungs and kidneys for elimination, transporting hormones from endocrine organs to target organs. Regulation functions: maintaining body temperature by absorbing and distributing heat, maintaining normal ph using buffers; alkaline reserve of bicarbonate ions, maintaining adequate fluid volume in circulatory system. Nutrients, gases, hormones, wastes, proteins, inorganic ions. Plasma proteins most abundant solutes by mass: remain in blood; not taken up by cells. Formed elements: only wbcs are complete cells, rbcs have no nuclei or other organelles.
