Why, God, WHYYYY? Also, How, God, HOOOOW?
November 22, 2005 1:28 PM Subscribe
Help me understand the mechanics of peeing.
posted by evariste to health & fitness (33 answers total) 3 users marked this as a favorite
So, what's going on in there when we pee? I imagine the bladder is emptying of urine, but that air probably isn't replacing the volume of liquid being expelled, so my bladder is simply deflating/crumpling up inside me? And what's with the squeezing? (I assume that's my prostate I'm squeezing when I cut off the flow, right? So what do girls squeeze with, since they don't even have a prostate?) How come we squeeze multiple times during a "session" to cut off the flow? Is there some physiological cue? I really can't explain why I stop-and-start multiple times instead of letting it out in one long stream, so I was wondering if there was a scientific explanation (or well-informed speculation) on why people do this. And one seems to increase the frequency of the squeezing the closer to being done one is. What's up? Please clear up my anatomical/mechanical befuddlement.
Any insight on the mysterious "delicious shivers" would also be welcome.