🚀 go-pugleaf

jhcooper@ocf.berkeley.edu  writes:
> Does anyone know any survival advantage of involuntary erections of
> the penis rather than voluntary control of erections?
> 
Erection of the peniscan be elicited by a variety of stimuli
caused by blood flow under the control of the parasympathetic
nervous system.  The parasympathetic nervous system is a
subdivision of the autonomic nervous system.  The other brance
is the sympathetic.  Parasympathetic NS stimulates erection
while the sympathetic stimulates ejaculation. Both are
physiologically distinct systems.  Investigate the functions of
noth these and the reasons should become obvious. Dr. Jim
Palmieri
-- 



   Dr. Jim Palmieri