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Collecting Tubule

Medically reviewed by: Stephanie Curreli, MD, PhD
Last Updated: Jun 10, 2015

The collecting tubule is part of the kidney. It is also known as the arcuate renal tubule, or the CNT. It is a tube-shaped portion of the kidney’s collecting duct system; this system links the distal convoluted tubule to the cortical collecting duct. The collecting tubule helps maintain the proper levels of electrolytes and water in the body at all times.