KINESIOL 1AA3 Final: KIN 1AA3 Anatomy full exam review notes .docx
16 Sep 2013
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If allow blood to clot first, when it is separated into liquid and denser portions the liquid part is called serum instead of plasma and it no longer has the things it needs for clotting, i. e. fibrinogen. Liquid part of blood: colloid: liquid containing suspended substances that don"t settle out of solution, 91% water, remainder proteins, ions, nutrients, waste products, gases and regulatory substances. Ions: involved in osmosis, membrane potentials, and acid-base balance. Nutrients: glucose, amino acids, triacylglycerol, cholesterol, vitamins. Gases: oxygen (bound to molecule inside rbc, small % dissolves separately in liquid portion, not effective in changing bodily processes), carbon dioxide, and inert nitrogen. Hematopoiesis or hemopoiesis: process of blood cell production. Stem cells: all formed elements derived from single population; Megakaryoblasts: develop into platelets: platelets are considered cell fragments, actual cell is called megakaryocyte. Contain no nuclei, no machinery for repair that why they need to get replaced so often. Loose nucleus between late erythroblast and reticulocyte.
