Flashcards in Glomerular Filtration Deck (13):
What are the parts of the Nephron in order?
Glomerulus, Bowman's capsule, proximal tubule, loop of henle, distal tubule, collecting duct
What is the most important determinant of GFR?
renal blood flood, but also aterial pressure and renal vascular resistance but they can be regulated by the contraction and dialition of afferent and efferent arterioles
If BP falls
afferent arteriole dialates
If BP rises
afferent arteriole contricts
What does angiotensin 2 do, in terms of low blood pressure?
contricts efferent arteriole, so that GFR is not reduced
so if someone has hypotension, they would still be able to have normal GFR due angiotension 2
what does prostaglandins do in terms of low blood pressure
dilates afferent arteriole
What are renal constrictors?
Aniotensin 2 - efferent arteriole only
What are renal vasodialtors
high protein diets
UV * Ucreat/Pcreat
GFR * plasma concenttration
Urine flow rate * urine concenttration
GFR =inverse of
1/Pcreat same as 1/serum creatinine