I know it’s a stupid question, but how does the body differentiate when it will pee vs ejaculate?
What is the trigger that causes ejaculation vs that when we need to pee?
Sorry for such a stupid question
I know that Ejaculation is caused by pleasure, but what forces it to come forward from our Epidydimis vs urine from our bladder
In: Biology
The urge to uninate is caused by the bladder stretching out. Sends a signal up to your brain to let you know it’s getting full. You usually get a few warnings before it releases on its own.
There’s a bit of muscle called a sphincter at the bottom of the bladder which basically pinches off the urethra to keep the urine from leaking out. The urethra passes through the prostate gland, and then another sphincter, and from there it’s basically just an open tube to the outside of your body through the penis.
Semen, in short, is produced in the prostate. There’s more glands and structures involved, but let’s keep it simple. The prostate mixes together sperm from the testes with some libricant, some sugar, and special proteins to produce semen. Muscles around the prostate contract to force the semen down the urethra and out the penis.
What triggers an ejaculation is stimulation of the external genitals, stimulation of the prostate directly, or in some cases psychologically triggered. I don’t know the exact mechanism offhand but I’d guess it’s something to do with a critical threshold of certain hormones.
Urination and ejaculation are entirely separate and unrelated processes with completely different mechanisms. The only thing they have in common is sharing the urethra to expel fluids.
Ejaculation is caused by the nervous system that causes fight or flight, which is why it only happens when you’re aroused. It’s also why you can’t actually stop yourself from ejaculating once your reproductive muscles have started, or ejaculate on command. the muscles are out of your direct control.
Peeing is controlled voluntarily by the muscles near your bladder. This is why you can stop a stream mid-way, or choose to pee once you’re in a convenient position(at a toilet, hopefully).
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The vas deferens is the pipe carrying sperm from the balls all the way to the tip of the penis and the prostate gland squeezes so it won’t let any urine out while pumping semen out. After ejaculating it remains tight to avoid any mixups hence why you can’t immediately pee.
But why does it feel good on the tip? Ejaculation?
Why wouldn’t urine have the same sensation?
Honest question.
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