Sections View Full Chapter Figures Tables Videos Annotate Full Chapter Figures Tables Videos Supplementary Content + Download Section PDF ++ Douglas C. Eaton, PhD ++ Distinguished Professor of Physiology ++ and Professor of Pediatrics ++ Department of Physiology ++ Emory University School of Medicine ++ Atlanta, Georgia ++ ++ John P. Pooler, PhD ++ Professor of Physiology Emeritus ++ Department of Physiology ++ Emory University School of Medicine ++ Atlanta, Georgia