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Name the hormones that increase reabsorption of water in the DCT of nephrons.

Last updated date: 13th Jun 2024
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Hint: The kidney is the organ of the excretion and is made up of the millions of the nephrons. Each nephron performs the process of excretion by the process of the absorption and the filtration. The parts of the nephrons are Bowman’s capsule, Henle’s loop, distal convoluted tubule and the collecting duct.

Complete Answer:
- Distal convoluted tubule (DCT) is a part of the kidney nephron between the loop of Henle and the collecting duct that leads to the out of the nephron to the urethra. DCT functions for the maintenance of potassium, sodium, calcium, and pH in the blood.
- Aldosterone is a hormone that is secreted in the cortex of the adrenal organs, which are situated over the kidneys. The hormone helps in inducing the DCT to make the reabsorption of water with the sodium in order to increase the blood volume.
- Cylindrical reabsorption is the cycle that moves solutes and water out of the filtrate and back into your circulatory system. This cycle is known as reabsorption since this is the second time they have been assimilated.
- Before that the first absorption takes place in the digestive tract after the meal. The water gets absorbed into the bloodstream. Sodium and potassium levels are constrained by discharging the $K^+$ ions and absorbing the $Na^+$ ions from the urine into the blood.

Thus the aldosterone is responsible for the reabsorption of the water in the distal convoluted tubule of the nephron.

Note: The hormone aldosterone helps in maintaining the blood pressure of the body by regulating the amount of the water and the salt in the blood. If the salt and the water level is more, it induces the DCT there by eliminating them into the urine. And if it is less, it stimulates DCT to reabsorb them.