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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.
Farlex Partner Medical Dictionary © Farlex 2012
urinary reflex(1) Micturition reflex.
(2) Bladder reflex, see there.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.
A spinal cord reflex, initiated by accumulated urine stretching the bladder and the resulting contraction of the bladder to expel urine.
See also: reflex
Medical Dictionary, © 2009 Farlex and Partners