Proximal Convoluted Tubule
by ![Tim Taylor]()
Written by
Tim Taylor
Anatomy & Physiology Senior Writer
Tim Taylor is a senior writer at Innerbody Research focusing on human anatomy and physiology. Tim earned both his Bachelor of Science degree in Biology and his Master's degree in Teaching from the University of Pittsburgh.
Last updated: May 5th, 2025
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The proximal convoluted tubule is the most proximal segment of the renal tubular portion of the nephron. It is responsible for the reabsorption of glucose, amino acids, various ions and water.
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