[PNB 2265] - Midterm Exam Guide - Everything you need to know! (41 pages long)

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Lecture outline: blood composition/analysis, red blood cells: structure/function, erythropoiesis, blood typing, white blood cells: classification, white blood cells: production, platelets: function, platelets: production, hemostasis. Composition: plasma (liquid, cells (white/red blood cells, cell fragments (platelets) Physical properties: mostly water (plasma, neutral ph (7. 4) Men have a little more blood because they are generally bigger. Transport: nutrients, wastes, gases (o2 and co2) If you change blood composition you change size of cells: temperature (~38c, fluid loss (injury) Protection: important component of immune system. Can separate blood in a centrifuge and see that it"s a mixture: plasma on top, formed elements on the bottom. Rbc and wbc and platelets: 50/50 breakdown. Plasma (46-63%: liquid portion, mostly water, but also electrolytes and proteins. Formed elements (37-54%: cells (rbc, wbc, platelets (cell fragments) Otto is an elderly alcoholic who has stopped responding to a steroid medication that he has been taking regularly for several months.