POINT!
WaterChannelseffectSummaryBasic-Eng.jpg

With an increase/a decrease in the number of water channels (in the tubule), the water reabsorption (from the tubule) increases/decreases, the plasma osmolarity-decreasing effect of water reabsorption becomes stronger/weaker, and plasma osmolarity decreases/increases.

Challenge Quiz

1. With an increase a decrease in the number of water channels (in the tubule), plasma osmolarity decreases.
2. With an increase a decrease in the number of water channels (in the tubule), plasma osmolarity increases.