Question:

The reabsorption of water in the kidney is under the control of

Updated On: Jun 7, 2022
  • LH
  • ADH
  • STH
  • ACTH.
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The Correct Option is B

Solution and Explanation

Water reabsorption in kidneys is controlled by ADH or antidiuretic hormone or vasopressin. It is released in response to a fall in the water content of blood plasma and leads to an increase in the permeability to water of the distal convoluted tubule, collecting tubule and collecting duct in the kidney. As a result of which the reabsorption of water from the glomerular filtrate is increased.
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Concepts Used:

Mechanism Human Excretory System

Excretory System Organs

Kidneys- Kidneys are bean-shaped structures located on either side of the backbone. In human each adult kidney size is 10-12 cm with a width of 5-7 cm and weighs around 120-170g and it have an inner concave structure.

Ureter - A pair of thin muscular tubes called the ureter. Ureter comes out of each kidney extending from the renal pelvis and it carries urine from the kidney to the urinary bladder.

Urinary Bladder - muscular sac-like structure which stores urine. The urinary bladder is emptied by the process of micturition.

Urethra- This tube comes out from the urinary bladder and helps to expel urine out of the body. It acts as the common route for sperms and urine in males.