AVP + oxytocin Flashcards
1
Q
On what ADH acts?
A
osmoreceptors of the hypothalamus (VR-OAC) and baroreceptors
2
Q
What acts on pituitary to secrete AVP?
A
- sympathetic system
- hyperosmolarity
- decreased atrial receptor firing
- angiotensin II
3
Q
Go study slide 124.
A
GO
4
Q
What is diabetes incipidus and what can cause it?
A
Excretion of large ammounts of urine that is hypotonic causes: - no response to vasopressin - lack of vasopressin - high vasopressin metabolism - pregnancy - receptor defect or aquaporin defects
5
Q
Where is oxytocin released other than the pituitary?
A
- ovaries (corpus luteum)
- uterus in some species (bovines)
6
Q
What keeps the uterine myomerium relaxed during pregnancy?
A
progesterone + relaxin
less oxytocin receptors
7
Q
What role of oxytocin is still under research and what was the study?
A
social behavior = bonding with others = love hormone
monogamous mice has a lot more oxytocin expressed in brain than another breed that is not
