Pathophysiology Flashcards
1
Q
Where’s most the sodium reabsorbed?
A
PCT 70%
Bicarbonate is too by carbonic anhydrase
2
Q
Vitamin D and the kidney
A
1a- hydroxylation of vitamin D at the kidney
3
Q
How does angiotensin 2 act on the kidney?
A
Constricts the efferent > afferent arteriole.
4
Q
Whats used to measure renal blood flow?
A
P- aminohippuric acid
5
Q
When is renin released?
A
Fall in perfusion pressure at baroreceptors in afferent arterioles
6
Q
Where are the juxtaglomerula cells
A
Afferent arteriole - they secrete renin
7
Q
Where’s the macula densa cells
A
DCT
