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Aldosterone ia a mineralocorticoid hormone that exerts influence on mineral salts in the blood. Aldosterone increases serum sodium concentrations and decreases serum potassium levels. The target organs of these mc's are the renal (kidney) tubules. It increases reabsorption of sodium thereby sparing the electrolytes loss in the urine during micturition. Because fluids/water in the body follow sodium, fluid loss is conserved increasing intravascular fluid volume.
Atrial natruretic hormone or ANH is a hormone liberated from atria of the heart, it attempts to regulate fluids and electrolytes. It stimulates total serum sodium loss from the kidneys. In acute congestive heart failure or CHF, increased levels of ANH are noted. This is in an effort to rid the body of fluids, because, again fluids/water follow sodium, and in CHF increased fluids are present in the pulmonary tree and elsewhere.
Aldosterone is a hormone made by the outer portion of the adrenal gland. It is one of the most important hormones that regulates the body's electrolyte balance. It's purpose is to regulate the balance of salt and water within the body. When salt levels become low within the body, aldosterone is produced. Aldosterone then activates the mineralocorticoid receptor gene. Once this is activated it tells the kidneys to reabsorb salt, thereby retaining water.
Atrial natriuretic is a vasodialator and hormone secreted by the heart. It is involved in the balance of water, sodium, potassium, and fat. When blood pressure becomes to high atrial natriuretic is released from the upper chambers of the heart. Once released it assists with the reduction of water, sodium and fat loads on the circulatory system. In doing this, it lowers blood pressure.
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