Dynamics of Glomerular Filtration Flashcards
0
Q
the glomerular pore is about ___ wide
A
30 angstrums
1
Q
what restricts molecules getting filtered?
A
size, shape, charge
2
Q
why is pressure in the glomerular pretty steady?
A
because of the efferent arteriole
3
Q
what is the pressure opposing filtration?
A
Bowman’s space pressure
4
Q
why does plasma oncotic pressure rise along the length of the capillary?
A
as you filter plasma, the proteins are left behind, exerting a pressure
5
Q
GFR=
A
Kf x (HPgc - HPbs - πgc) Kf= SA x Lp (hydraulic permeability- doesn’t change)
6
Q
what determines the surface area?
A
the number of nephrons, how contracted the glomerulus is
7
Q
A
