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Description: In presence of ADH, collecting ducts become very permeable to water. Tubular fluid there becomes very concentrated. Movement of water also carries urea into the medulla, contributing to its osmolarity. Picture Stats: Views: 193 Filesize: 1.21MB Height: 999 Width: 991 Source: https://biology-forums.com/index.php?action=gallery;sa=view;id=40867 |