Homeostasis control mechanisms normally occur through negative feedback processes, in this case, reabsorption of water in the nephron.
Homeostasis is the process by which the organism maintains constant the constant internal conditions for life. The term is applied to the set of processes that prevent variations in the physiology of an organism.
The main function of homeostasis is to regulate the countless processes that take place in the body in order to keep it in a normal condition. So the majority of water reabsorption that occurs in the nephron is facilitated by the AQPs
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