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What is #1 priority for endocrine system? |
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maintain plasma glucose at 100 mg% |
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milligrams of whatever per 100 milliliters of blood |
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kidney glucose> or = 250 mg% |
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What do these things have in common? |
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all symptoms of elevated blood glucose levels caused by osmotic problems, cell dehydration and hyperosmolarity |
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what happens when glucose levels are low for an extended period of time? |
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Definition
death of neural, red blood, renal medulla cells |
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what is the difference between anabolic and catabolic |
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Definition
anabolic=builds tissue up Catabolic=uses it up or tears it down |
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the ratio of insulin and glucogon does what? |
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regulates metabolic processes |
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It is the polysacheride of glucose. it functions as short term storage for glucose |
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What is glycogenolysis and which hormones stimulate ut? |
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Glycogenolysis is the catabolism of glycogen by removal of a glucose monomer through cleavage with inorganic phosphate to produce glucose-1-phosphate. This derivative of glucose is then converted to glucose-6-phosphate, an intermediate in glycolysis. The hormones glucagon and epinephrine stimulate glycogenolysis. from wikipedia |
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http://en.wikipedia.org/wiki/Lipolysis |
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Gluconeogenesis is the generation of glucose from non-sugar carbon substrates like pyruvate, lactate, glycerol, and glucogenic amino acids. http://en.wikipedia.org/wiki/Gluconeogenesis |
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What is the liver's role in metabolism? |
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1) stores 1/3 of the body's glycogen 20 Primary site of gluconeogenesis 3) Primary site of FFA syntheis |
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What is Adipose tissue's main contributions to metabolism? |
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Definition
Primary site of lipid/trigliceride storage 15% body weight Lypolisys |
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what is the composition of triglycerides in circulation? |
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Definition
free fatty acids and glycerol are bound to albumin which is taken up by cells as a nutrient. |
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What does LPL stand for and what does it do? |
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Lipoprotien lipase, it's an enzyme that cleaves off FFA's from TG and vLDLs |
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Chylomicrons are large lipoprotein particles (having a diameter of 75 to 1,200nm) that are created by the absorptive cells of the small intestine.The chylomicrons are released by exocytosis from enterocytes into lacteals, lymphatic vessels originating in the villi of the small intestine, and are then secreted into the bloodstream at the thoracic duct's connection with the left subclavian vein. Chylomicrons transport exogenous lipids to liver, adipose, cardiac and skeletal muscle tissue where they are broken down by lipoprotein lipase into very low density lipoproteins (VLDLs). http://en.wikipedia.org/wiki/Chylomicron |
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What is Muscle's role in energy use? |
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Definition
stores 2/3 of glycogen 50% of body mass very variable with use oxydizes FFA ( for atp generation) uses 50% neutral amino acids to produce ATP |
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