bladder reflex


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mic·tu·ri·tion re·flex

contraction of the walls of the bladder and relaxation of the trigone and urethral sphincter in response to a rise in pressure within the bladder; the reflex can be voluntarily inhibited and the inhibition readily abolished to control micturition.

bladder reflex

(1) The intrinsic tendency of the urinary bladder to contract and empty as it fills with fluid or urine.
(2)  Micturition reflex.