Antidiuretic hormone (ADH), also known as vasopressin, is a peptide hormone produced by the hypothalamus and released by the posterior pituitary gland that plays a crucial role in regulating water balance in the body. It helps to maintain homeostasis by controlling the amount of water reabsorbed by the kidneys, thereby influencing urine concentration and volume. By managing fluid levels, ADH is essential for osmoregulation, ensuring that the body's internal environment remains stable despite external changes.
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