kidney- ultrafiltration

bio paper 1

what’s ultrafiltration?

filtration of the blood which takes place in the glomerulus

where does blood arrive and through what?

Arrives at the glomerulus

through the afferent arteriole

what’s the glomerulus?

capillary bed found within the bowman’s capsule of the nephron

where does blood leave the glomerulus?

through the efferent arteriole

difference between afferent and efferent arteriole

afferant has a wider lumen, allowing hydrostatic pressure to build in the glomerulus

the fluid passes through holes in what?

* capillary endothelium
* basement membrane
* epithelium of bowmans capsule

after the fluid passes through the barrier what’s is called now?

filtrate

what molecules can pass through the barriers

* gluocse
* amino acids
* urea
* ions hormones

what molecules can’t pass the barriers and why?

* red blood cells
* plasma proteins
* large size