If an individual becomes dehydrated

Question

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When an individual becomes dehydrated, the body attempts to retain water by increasing the facultative reabsorption of water in the kidneys. This means that more water is reabsorbed from the filtrate back into the bloodstream, reducing urinary output and maintaining proper fluid balance. Vasopressin secretion is also increased in response to dehydration, which stimulates water reabsorption in the kidneys. The ECF osmolarity would become hypertonic in response to dehydration, not hypotonic.

If an Individual Becomes Dehydrated