Frontiers of Biomedical Engineering

Yale Course , Spring 2008 , Prof. W. Mark Saltzman

101 students enrolled

Overview

Biomedical Engineering, Genetic Engineering, Cell Culture Engineering, Bio-molecular Engineering, Cardiovascular Physiology, Renal Physiology, Biomechanics and Orthopedics, Bioimaging, Tissue Engineering.

Lecture 17: Renal Physiology - II

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        Lecture Details

        Professor Saltzman continues his description of nephron anatomy, and the specific role of each part of the nephron in establishing concentration gradients to help in secretion and reabsorption of water, ions, nutrients and wastes. A number of molecular transport processes that produces urine from the initial ultra-filtrate, such as passive diffusion by concentration difference, osmosis, and active transport with sodium-potassium ATPase, are listed. Next, Professor Saltzman describes a method to measure glomerular filtration rate (GFR) using tracer molecule, inulin. He then talks about regulation of sodium, an important ion for cell signaling in the body, as an example to demonstrate the different ways in which nephrons maintain homeostasis.

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