Preabsorptive and Postabsorptive Factors in the Termination of Drinking in the Rhesus Monkey
The physiological signals which terminate water intake are not well understood. It is possible that animals and humans may employ preabsorptive signals (generated by water acting in the mouth, esophagus, stomach, or small intestine), postabsorptive signals (generated by water acting in the hepatic portal system or in other extracellular or intracellular compartments), or some combination of preabsorptive and postabsorptive signals in order to recognize the appropriate moment to stop drinking. It is possible that the specific signals employed to stop drinking which has been generated by different means (water deprivation, food intake, or hormonal and pharmacological agents) may be different. Finally, of course, it is possible that different species utilize entirely different signals, or place differential emphasis on elements within the same array of physiological signals.1–9
KeywordsRhesus Monkey Isotonic Saline Water Deprivation Plasma Dilution Satiate Effect
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