ultrafiltration /ul·tra·fil·tra·tion/ (ul″trah-fil-tra´shun) filtration through a filter capable of removing very minute (ultramicroscopic) particles.
ultrafiltration
ul·tra·fil·tra·tion ( l tr -f l-tr  shn)n. The filtration of a colloidal substance through a semipermeable medium that allows only small molecules through. |
ultrafiltration
[-filtrā′shən]
a type of filtration, sometimes conducted under pressure, through filters with very small pores, such as those used by an artificial kidney. It can separate large molecules from smaller molecules in body fluids.
ultrafiltration
filtration through a filter capable of removing colloidal particles from a dispersion medium, as in the filtration of plasma at the capillary membrane.
ultrafiltration
One of the mechanisms that produce aqueous humour from blood plasma into the ciliary epithelium of the ciliary processes. This mechanism takes advantage of the natural pressure gradient between the capillary vascular pressure and intraocular aqueous pressure, to drive fluid into the eye. Ultrafiltration is one of three physiological processes that create aqueous fluid, the others being active transport and diffusion. See ciliary body; diffusion; active transport aqueous rate of outflow humour.
How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content.
| ?Page tools | ||
|---|---|---|
|