Summary The kidney and regulation of blood water potential revision notes

FORMATION OF GLOMERULAR FILTRATE

Blood enters the kidney Walls
of the glomerular capillaries are



through renal
artery made up of endothelial cells with pores

which branches into between them
arterioles then enters a



renal lBowman 's) capsule Diameter of afferent arteriole is
greater
than that of the efferent arteriole
This afferent
1
is the

arteriole which divides
to form glomerulus Build up of hydrostatic pressure
within

glomerulus
1
Glomerular capillaries
late merge to form
the efferent arteriole Water ,
mineral ions and glucose are forced out
which divides again of the capillary to form glomerular filtrate
into capillaries Blood cells and large proteins cannot pass across


the renal capsule too large
as
they are


These wind around nephron




.mn#-:--:: : :.: : :. .: t
tubulues then recombine Movement of filtrate resisted by :




forming the renal vein
-




capillary endothelial cells

To reduce resistance : blood capillaries
-




podocyte cells with spaces -


epithelial cells of the renal capsule
between -


hydrostatic pressure of fluid in renal capsule
-




spaces in endothelium -


low wake potential of glomerulus
between cells



÷
blood into the renal capsule