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21 Cards in this Set
- Front
- Back
If urine is less concentrated than plasma, free water clearance is ___________
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positive
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Increased urine flow will _______ the amount of urea excreted
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increase
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low protein intake results in __________ urine
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dilute
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ADH stimulates the _________ of urea
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reabsorption
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When macula densa senses decreased _____ it ________ the __________ arteriole
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NaCl; vasodilates; afferent
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AngII and NE promote _________ ___________
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sodium reabsorption
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the fact that increased volume filtered leads to increased Na+ excreted is the principal of ____________ __________
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glomerulotubular balance
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_________ _________ is the enzyme in the parietal cells that functions to boot H+ into the lumen
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carbonic anhydrase
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Pancreatic ductal cells use the enzyme _________ _______ to move _________ into the lumen
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carbonic anhydrase; HCO3-
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In the proximal tubule, _______ and __________ are recovered from the lumen and formed into _________ which is then transported into the interstitium.
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H2O; CO2; HCO3-
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The _________ ___________ reabsorbs most of the filtered bicarbonate
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proximal tubule
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Reabsorption of Bicarbonate is achieved through ______ ion excretion
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H+
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Type B Intercallated cells function to __________ bicarbonate. Where are they located?
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secrete; Distal convoluted tubule and collecting ducts
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Type A Intercallated cells function to _________ bicarbonate. Where are they located?
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reabsorb; Distal convoluted tubule and collecting ducts
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Excretion of urinary H+ involves the production of new bicarb (True/False)
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True
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What are the three fates of secreted H+?
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Titrated with filtered HCO3- to recover that bicarb. Excreted as H2PO4- (new bicarb formed). Excreted as NH4+ (new bicarb formed)
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Hypokalemia leads to metabolic __________
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alkalosis
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Hyperkalemia leads to metabolic ___________
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acidosis
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aldosterone stimulates apical _____________, increases _______ reabsorption and ________ secretion in the collecting ducts
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H-ATPase; Na+; K+
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hyperaldosterism leads to ____________
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alkalosis
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hypoaldosterism leads to _________
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acidosis
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