Part 3 of three videos discussing the sodium-dependent reabsorption of filtrate at the proximal convoluted tubule in the kidney. Glomerular filtration rate, as well as the effects of too high a GFR and too low of a GFR, are briefly discussed. Compensatory mechanisms to regulate GFR are briefly reviewed though it would be beneficial to watch the video titled glomerular filtration rate prior to this video. This video then discusses the affect of hypernatremia and hyponatremia on the ability of the PCT to reabsorb nutrients as well as wastes like urea from the filtrate and back into the blood; hypernatremia will decrease reabsorption while hyponatremia increases reabsorption. Lastly, the consequence of too high of protein or glucose in ones diet, and how it causes hyponatremia (and increased reabsorption), is described. This video is intended for freshman/sophomore pre-nursing students. A scan of this diagram can be obtained at http://www.kirkwood.edu/pdf/uploaded/695/pct.pdf
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