Major site of action of ADH –
Correct Answer: Medullary collecting duct
Description: Ans. is 'd' i.e., Medullary collecting duct o In kidney, ADH increase water reabsorption by increasing the permeability of water in late distal tubule, cortical and medullary collecting ducts. ADH has this antidiuretic effect by acting on V2 receptors which augment water reabsorption by aquaporin-2 water channels.o It is worth noting that, though the ADH increases the permeability of water in late distal tubules, cortical collecting duct and medullary collecting duct, the most important action is on medullary collecting duct where the maximum concentration of urine occurs.
Category:
Physiology
Get More
Subject Mock Tests
Practice with over 200,000 questions from various medical subjects and improve your knowledge.
Attempt a mock test nowMock Exam
Take an exam with 100 random questions selected from all subjects to test your knowledge.
Coming SoonGet More
Subject Mock Tests
Try practicing mock tests with over 200,000 questions from various medical subjects.
Attempt a mock test now