PSIO 532 Study Guide - Final Guide: Renal Blood Flow, Nephron, Efferent Arteriole
Document Summary
As apah increases, spah increases to a constant maximum value (the tubular transport maximum tm discussed later). As the apah increases, the value for apah exceeds the tubular maximum transport capacity by so much that the amount secreted is dwarfed by the amount of pah filtered. Remember that filtration increases as the concentration of pah increases and has no maximum limit. At high apah values, spah/apah approaches zero and. Compare with the graph of upah* v vs apah in which the slope is very steep initially then is parallel to that of the gfr. The slide above illustrates the clearance of pah. Consider the following: at the glomerulus, 100 ml of plasma gets filtered and this will have pah in it at the. Same concentration as in plasma water: now that leaves 400 ml of plasma going into the efferent arteriole and that plasma has pah in it just as before.
