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16 Cards in this Set
- Front
- Back
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units of GFR
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volume/time
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normal GFR
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180 L/day
125 ml/min |
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GFR formula
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Kf x NFP
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formula for NFP
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Pgc - (Pbc+ oncoticGC)
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Kf increases when
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increase in surface area due to relaxation of glomerular mesangial cells
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Pgc increases when
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increase in renal arterial pressure
increase in efferent arteriole resistance |
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Pgc decreases when
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increase in afferent arteriole resistance
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Pbc increases when
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obstruction of tubule
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oncoticGC increases when
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decrease in renal blood flow
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filtration fraction formula
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GFR/RPF
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filtration fraction is greater at (high plasma flow / lower plasma flow)?
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lower
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what happens to GFR when only the efferent arteriole is constricted
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first rises (Pgc affect dominates)
then falls (RPF affect dominates) |
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what happens to GFR when only the afferent arteriole is constricted
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falls (Pgc and RPF decrease)
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what is tubuloglomerular feedback
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regulation of GFR by the macula densa
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RAAS affect on GFR and RPF
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decrease in RPF with little change in GFR
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ANP affect on GFR and RBF
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increases both
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