PSIO 532 Study Guide - Final Guide: Renal Function, Chronic Kidney Disease, Efferent Arteriole
Document Summary
If filtration equilibrium exists, then t rbf ->t gfr. The figure above shows two scenarios regarding glomerular filtration. The graph on the left depicts filtration equilibrium. The graph on the right shows filtration disequilibrium. Filtration equilibrium occurs when the pressure favoring filtration ap (primarily pc) are perfectly balanced with the pressure opposing filtration, an such that [(pc - pt) - fac- rct)l. = 0 before the end of the glomerular capillaries (arrow on left graph). Arc never equals ap (right panel), filtration will occur throughout the whole glomerular capillary from one end to the other. If filtration equilibrium does exist, then an increase in rbf will lead to an increase in. As rbf increases, the point at which arc rises to equal ap will move farther toward the efferent arteriole (to the right). The surface area used for filtration will increase and the area between the curves (= gfr) will be larger.
