NEET 2009 Biology question

What will happen if the stretch receptors of the urinary bladder wall are totally removed?

(1)Micturition will continue
(2)Urine will continue to collect normally in the bladder
(3)There will be no micturitionCorrect
(4)Urine will not collect in the bladder

Answer: (3)

Solution

The micturition reflex is initiated when the bladder fills and its walls are stretched: stretch receptors send signals to the CNS, which sends motor messages to contract the bladder smooth muscle and relax the urethral sphincter. If the stretch receptors are totally removed, the signal that the bladder is full is not

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Question ID VK-090202