16.10 - Role of Hormones in Osmoregulation Flashcards
The role of the kidney in osmoregulation How ADH controls water reabsorption in the kidney Negative feedback control of ADH release
1
Q
What is osmoregulation?
A
Homeostatic control of blood water potential
2
Q
What hormone plays a crucial role in water reabsorption?
A
Antidiuretic hormone (ADH)
3
Q
Where is ADH produced?
A
Hypothalamus
4
Q
Where is ADH stored?
A
Posterior pituitary gland
5
Q
What are the target cells of ADH?
A
DCT and collecting duct cells
6
Q
What is the mechanism of ADH action?
A
ADH binds
7
Q
How is ADH release controlled?
A
Negative feedback system
8
Q
What detects changes in blood water potential?
A
Osmoreceptors in hypothalamus
9
Q
What happens when blood water potential decreases?
A
ADH released
10
Q
What happens when blood water potential increases?
A
ADH release decreases
11
Q
Why is regulation of blood water potential important?
A
Maintains homeostasis
