When blood water potential decreases, osmoreceptors trigger ADH release, increasing water reabsorption in the kidneys to produce concentrated urine and raise blood water potential.
- osmoreceptors in hypothalamus detect decrease in blood water potential - posterior pituitary gland stimulated to secrete more ADH - ADH increases number of aquaporins in cells in distal convoluted tubule and collecting duct - permeability of cells to water increases - more water reabsorbed by osmosis - smaller volume of more concentrated urine produced - less water loss so increase in blood water potential
| Front | What happens when blood water potential decreases? |
|---|---|
| Back | - osmoreceptors in hypothalamus detect decrease in blood water potential - posterior pituitary gland stimulated to secrete more ADH - ADH increases number of aquaporins in cells in distal convoluted tubule and collecting duct - permeability of cells to water increases - more water reabsorbed by osmosis - smaller volume of more concentrated urine produced - less water loss so increase in blood water potential |
Tags: homeostasis
Learn with these flashcards. Click next, previous, or up to navigate to more flashcards for this subject.
Next card: Water blood potential decrease cells increases osmoreceptors hypothalamus detect
Previous card: Osmoregulation control blood water potential
Up to card list: AQA A Level Biology