What triggers the release of urine from the bladder?
What triggers the release of urine from the bladder?
A decrease in bladder pressure
A decrease in bladder volume
An increase in bladder pressure
An increase in bladder volume
Solution
The release of urine from the bladder is initiated by the stretching of the bladder as it gets filled with urine. In response, the stretch receptors on the walls of the bladder send signals to the CNS, which then passes on motor messages to initiate the contraction of smooth muscles of the bladder and the simultaneous relaxation of the urethral sphincter, causing the release of urine.