021709homework - Homework due Name 1 What hormone is...

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Homework due 2/17/09 Name ____________________________________ 1. What hormone is released by the juxtaglomerular cells of the kidney? What causes the release of this hormone? What does this hormone do in the blood? How does the release of this hormone ultimately lead to water retention? 2. Describe how decreased hydrostatic pressure at the renal artery can result in the secretion of ADH in the pituitary and the secretion of aldosterone from the adrenal cortex? 3. Describe the mechanisms by which the following medications treat high blood pressure: ACE inhibiters, angiotensin-receptor blockers, diuretics, β -blockers and calcium channel blockers. 4. What two compartments are the most important in the homeostatic water balance of the body? Which is typically activated first and thus is the primary mechanism under normal conditions. 5. How do osmoreceptors sense the amount of intracellular water? Where are these osmoreceptors located?
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6. How is the activation of nucleus circularis cells related to water retention?
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