Question

ADH increases of the walls of collecting duct.

Answer 1

Antidiuretic hormone (ADH):

1. It is also called vasopressin.
2. It is synthesised by hypothalamus and released by the posterior pituitary.
3. It plays an important role in water re-absorption at the collecting duct.
4. It is effective in the re-absorption of water by changing the permeability of the collecting duct.

Final answer: ADH increases the permeability of the walls of the collecting duct.