Running head: REGULATORY BEHAVIOR PAPERRegulatory Behavior1Regulatory Behavior Paper2Regulatory BehaviorWater is one of the most, if not the most important regulatory behaviors. Waterconstitutes approximately seventy percent of the human body. Because of the concentration ofchemicals in water determines the rate of all chemical reactions in the body. The water must beregulated within narrow limits. The body also needs enough fluid in the circulatory system tomaintain normal blood pressure. The body needs water in order to function properly and moreimportantly to survive.The strategy for maintaining water is dependent on the given circumstance. If one cannotfind enough to drink their body naturally conserves water by excreting more concentrated urineand decreasing sweat. The posterior pituitary releases the hormone vasopressin, which raisesblood pressure by constricting the blood vessels. The increased pressure helps compensate forthe decreased blood volume. This enables the kidneys to reabsorb water from urine, thereforemaking it more concentrated. Sleeping is another way the body preserves water since it naturallyis a time where one cannot drink.There are two types of thirst, osmotic and hypovolemic. Osmotic thirst is cause by eatingsalty foods. Losing fluid through bleeding, sweating and or diarrhea causes hypovolemic thirst.If one eats something salty, sodium ions spread through the blood and the extracellular fluid butdo not cross the membranes ...
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