The hormone ADH affects re absorption in the?

The hormone ADH (antidiuretic hormone), also known as vasopressin, primarily affects water reabsorption in the kidneys. It acts on the collecting ducts, increasing their permeability to water, which allows more water to be reabsorbed back into the bloodstream. This process helps to concentrate urine and regulate the body’s water balance, particularly in response to dehydration or high plasma osmolality.