Atrial natriuretic peptide Flashcards
1
Q
where is ANP secreted from?
A
- myocytes of right atrium and ventricle
- secreted by both the right and left atria (right»_space; left)
2
Q
why is ANP secreted?
A
in response to increased blood volume
3
Q
How many amino acids long is ANP?
A
28 amino acid peptide hormone
4
Q
What molecule does ANP act via?
A
cGMP
5
Q
What molecules break down ANP?
A
endopeptidases
6
Q
Actions of ANP
A
- Natriuretic, i.e. promotes excretion of sodium
- lowers BP
- antagonises actions of angiotensin II, aldosterone
7
Q
A
