RenalQA - Respiratory Seminar Q & A 1) Identify the...

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1) Identify the hormone secreted in response to angiotensin II. Aldosterone 2) Imagine a dehydrated desert prospector and a champagne-quaffing partygoer, each of whom drinks a liter of water at time zero and voids urine over a period of three hours. Using their urine samples compare the probable differences in volume, specific gravity and Na and Cl content over time (Hint: alcohol inhibits ADH secretion). prospector party-goer urinary volume lower higher specific gravity higher lower Na+, Cl- lower Na+ and Cl- higher Na+ and Cl- The prospector had lower volume because he was secreting ADH as a result of dehydration. Alcohol inhibits ADH. Therefore the party-goer would excrete a larger volume of dilute urine with a lower specific gravity. Since the prospector is dehydrated and has a lower circulating blood volume (and pressure), he should have a higher secretion of aldosterone than the party- goer. In this case, the aldosterone would stimulate increased reabsorption of
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This note was uploaded on 06/27/2008 for the course BIOL 66 taught by Professor Cargill during the Spring '08 term at San Jose State University .

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RenalQA - Respiratory Seminar Q & A 1) Identify the...

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