When your body fluid compartments5/2/2023 ![]() ![]() Sweating or dehydration increases the blood osmotic pressure.Ģ. ![]() These stimuli occur when a person sweats excessively or is dehydrated.ġ. ADH is released in response to such stimuli as a rise in the concentration of electrolytes in the blood or a fall in blood volume or pressure.ADH also causes the constriction of peripheral blood vessels, which helps to increase blood pressure.Primary function of ADH is to decrease the amount of water lost at the kidneys (conserve water), which reduces the concentration of electrolytes.Is a hormone made by the hypothalamus, and stored and released in the posterior pituitary gland.Antidiuretic hormone (ADH) (also called vasopressin) Urine solutes must be flushed out of the body in waterġ.Kidneys excrete 900-1200 mOsm of solutes to maintain blood homeostasis.Obligatory water loss reflects the fact that: Water that accompanies undigested food residues in feces.Insensible water losses from lungs and skin.Activation of stomach and intestinal stretch receptors.Moistening of the mucosa of the mouth and throat.Feedback signals that inhibit the thirst centers include:.Thirst is quenched as soon as we begin to drink water.Baroreceptor input, angiotensin II, and other stimuli.The hypothalamic thirst center is stimulated by:. ![]() ![]()
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