lecture23nth - Osmolarity of body fluids affected by...

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Unformatted text preview: Osmolarity of body fluids affected by solutes and water high Total amount of salts (and other solutes) 0 0 Total amount of water high regulated osmolarity regulated blood volume Recall that final urine is in range 50-1200 mOsM depends on water balance Figure 20-4 vasopressin (hormone released by posterior pituitary) causes collecting duct to be permeable to water (makes urine more concentrated) vasopressin is also called "anti-diuretic hormone" or ADH Figure 20-5a vasopressin (hormone released by posterior pituitary) causes collecting duct to be permeable to water (makes urine more concentrated) vasopressin is also called "anti-diuretic hormone" or ADH Figure 20-5b Mechanism of vasopressin action Figure 20-6 the hypothalamus again! Different stimuli cause the release of vasopressin (water conservation) Figure 20-7 Sodium balance Figure 20-11 Sodium retention is facilitated by aldosterone Figure 20-12 Behavior perfect compensation is not always possible Figure 20-16 Digestion Figure 21-2 Figure 21-3 Motility in GI tract - smooth muscle contracts spontaneously (interstitial cells of Cajal) Figure 21-4 ...
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This note was uploaded on 12/01/2010 for the course BIO SCI Bio Sci E1 taught by Professor Catherineloudin during the Spring '10 term at UC Irvine.

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