Because fluid lost as sweat is isosmotic,the baroreceptor reflexes are more important than osmoreceptor activity in restoring extracellular fluid volume after sweating.

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Sweat is typically hypotonic, meaning it has a lower concentration of solutes compared to body fluids. Therefore, osmoreceptors, which detect changes in osmolarity, play a crucial role in restoring fluid balance after sweating.

Because Fluid Lost as Sweat Is Isosmotic,the Baroreceptor Reflexes Are