antidiuretic hormone definition
Antidiuretic hormone (ADH): A relatively small (peptide) molecule that is released by the pituitary gland at the base of the brain after being made nearby (in the hypothalamus).ADH has an antidiuretic action that prevents the production of dilute urine (and so is antidiuretic). syndrome of inappropriate secretion of ADH results in the inability to put out dilute urine, perturbs fluid (and electrolyte) balance, and causes nausea, vomiting, muscle cramps, confusion and convulsions. Medical Definition of VASOPRESSIN. : a polypeptide hormone that is secreted together with oxytocin by the posterior lobe of the pituitary gland, is also obtained synthetically, and increases blood pressure and exerts an antidiuretic effect—called also antidiuretic hormone, beta-hypophamine; see arginine vasopressin, lysine vasopressin, pitressin.efinition of VASOPRESSIN. : a polypeptide hormone secreted by the posterior lobe of the pituitary gland or obtained synthetically that increases blood pressure and decreases urine flow —called also antidiuretic hormone. ADVERTISEMENT. from Vasopressin, a trademark. Definition of VASOPRESSIN. : a polypeptide hormone secreted by the posterior lobe of the pituitary gland or obtained synthetically that increases blood pressure and decreases urine flow —called also antidiuretic hormone.ADVERTISEMENT.from Vasopressin, a trademark.efinition of VASOPRESSIN. : a polypeptide hormone secreted by the posterior lobe of the pituitary gland or obtained synthetically that increases blood pressure and decreases urine flow —called also antidiuretic hormone. ADVERTISEMENT. from Vasopressin, a trademark. ADH is also called arginine vasopressin. It is a water-regulating hormone made by the hypothalamus (in the brain), and stored in the posterior pituitary gland. ADH is the chemical that tells the kidneys how much water to conserve.ADH constantly regulates and balances the amount of water in the blood.he ADH test measures how much antidiuretic hormone (ADH) is in the blood. ADH is a hormone that helps your kidneys manage the amount of water in your body. Noun. 1. antidiuretic hormone-hormone secreted by the posterior pituitary gland (trade name Pitressin) and also by nerve endings in the hypothalamus; affects blood pressure by stimulating capillary muscles and reduces urine flow by affecting reabsorption of water by kidney tubules. ADH, Pitressin, vasopressin.ntidiuretic hormone. (ADH) A hormone made by the hypothalamus and released from the pituitary gland. By making the kidneys reabsorb water, it limits urine output and helps control the body’s water balance. 1. antidiuretic hormone-hormone secreted by the posterior pituitary gland (trade name Pitressin) and also by nerve endings in the hypothalamus; affects blood pressure by stimulating capillary muscles and reduces urine flow by affecting reabsorption of water by kidney tubules.ADH, Pitressin, vasopressin.ntidiuretic hormone. (ADH) A hormone made by the hypothalamus and released from the pituitary gland. By making the kidneys reabsorb water, it limits urine output and helps control the body’s water balance. Vasopressin, also known as arginine vasopressin (AVP), antidiuretic hormone (ADH), or argipressin, is a neurohypophysial hormone found in most mammals. Its two primary functions are to retain water in the body and to constrict blood vessels.asopressin is a peptide hormone that increases water permeability of the kidney's collecting duct and distal convoluted tubule by inducing translocation of aquaporin-CD water channels in the plasma membrane of collecting duct cells. ADH (antidiuretic hormone): A peptide molecule that is released by the pituitary gland at the base of the brain after being made nearby (in the hypothalamus).ADH has an antidiuretic action that prevents the production of dilute urine (and so is antidiuretic).DH (antidiuretic hormone): A peptide molecule that is released by the pituitary gland at the base of the brain after being made nearby (in the hypothalamus). The hormone is stored in and released by the pituitary gland. ADH controls how your body releases and conserves water. When ADH (also called vasopressin) is produced somewhere other than the hypothalamus, the condition is called syndrome of inappropriate antidiuretic hormone (SIADH).In addition to making it harder for your body to release water, SIADH can result in lowered levels of electrolytes like sodium.DH controls how your body releases and conserves water. When ADH (also called vasopressin) is produced somewhere other than the hypothalamus, the condition is called syndrome of inappropriate antidiuretic hormone (SIADH). antidiuretic hormone (ADH). syn vasopressin, neuroendocrine secretion from the posterior pituitary; acts in the kidneys to increase the retention of water when body fluid osmolality increases, e.g. with excessive sweat loss when fluid is not adequately replaced.ntidiuretic hormone (ADH). syn vasopressin, neuroendocrine secretion from the posterior pituitary; acts in the kidneys to increase the retention of water when body fluid osmolality increases, e.g. with excessive sweat loss when fluid is not adequately replaced.
It is a neurohypophysial hormone found in most mammals. Its two primary functions are to retain water in the body and to constrict blood vessels.