water Flashcards
1
Q
what is another word for homeostasis of water?
A
osmoregulation
2
Q
low water in the blood
A
- stimulate osmoreceptors in the hypthalamus to secrete ADH from the hypophysis.
- ADH flow to distil conv tubule to make it more permeable
- more water reabsorbed into peritubular capillaries
- higher water in blood- homeostasis maintained
-urine is more concentrated on hot day - osmorecptors not stimulated and ADH not secreted by hypophysis
3
Q
high water in the blood
A
osmoreceptors not stimulated and adh not secreted therefore tubule less permeable and less water reabsorbed- urine diluted on cold day
