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IMG SURVIVOR
04-04-2006, 05:20 PM
We are in kidneys so lets continue



Which of the Following changes does not occur when the efferent arteriole contrancts?


1-Oncotic pressure in the efferent arteriole decrease
2-RPF decrease
3-Glomerular Capillary Hydrostatic preassure increase













When the efferent arteriole contratcs, hydrostatic preassure in the glomerular capilary rises. This effect tends to increase glomerular filtration rate(GFR), WHILE decreasing RPF leading to an increase of the fitration fraction. Because a greater proportion of plasma is filtered, the plasma proteinpresent in the glomerular capillary become more concentratedand oncotic preassure rise.

elektra
04-04-2006, 05:28 PM
wow I like that...;)







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