Where does ADH mostly affect in the nephron system?

[Smooth Operater]

Where does ADH mostly affect in the nephron system? thanks!

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[Streetwolf]

ADH affects the collecting ducts. It's the same thing as vasopressin. It allows the lumen to be more permeable to water by adding in more aquaporins. Thus water is reabsorbed into the efferent arteries and not expelled through the urine.

Edit: It also adds them in the distal convoluted tubule btw.

 

[andelJ94]

Does this action at the collecting duct absorb more water than the action of ADH at the DCT? I ask because the AAMC implies it does, but does not explain (big surprise) how.