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02/19/10(Fri)23:54:57 No.199406264  >>199404121
any
arousing stimulus will cause S2,3,4 to be activated. this is your
parasympathetic nervous system from the sacral nervous plexus. Touch,
thought, or general parasymp activation can all cause this. Thus
explaining morning wood. your parasympathetic is at raised levels during
sleep, especially REM sleep. sympathetic will cause spontaneous
erections. The phrase that pays here is "point and shoot. erections are
parasympathetic and ejaculation is sympathetic". Now biochemically? To
keep this short and sweet your sacral plexus nerves at the plexus have a
release of Acetyl Choline which excites the local nerves which will
release, primarily, NO onto the tissues. A flood of NO into the area
causes both massive vasodilation of the blood pools (corpus spongiosum
and cavernosum) and a constriction of venous drainage causing the penile
tissues to fill without any outlet. As the erection continues the very
first sympathetic signal, coming from L1, will cause your prostate to go
into lockdown, preventing you from peeing. This isnt the "i have an
erectiona nd my pee sprays everywhere", this is the "i just stopped
jacking it right when it was getting good and realized i cannot pee at
all unless i forceably try so hard i almost shit myself"
i wonder
if anyone else has stopped jerking off and then tried to pee. i have.
its fucking difficult to beat that sphincter. |
