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What is Vasopressin acts through which channels in collecting duct? and explain in detail?
Ans. B. Aquaporin 2a. Principal cells of collecting duct contain a regulated system of water channels antidiuretic hormone (ADH, also called arginine vasopressin, AVP).b. ADH controls permeability of these cells to water by regulating insertion of pre-formed water channels (aquaporin-2, AQP2) into apical membrane.