Why does pee becomes harder to stop once you started peeing?
In: Biology
There are two urethral sphincters that controll the release of urine. One is controllable, and the other is involuntary.
Once you start peeing, both are open, and while you can close the voluntary sphincter, you cant close the invomuntary one
Something like that. Its been many mokns since i studied the urinary system
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