[six] Erection subsides when parasympathetic stimulation is discontinued; baseline stimulation from your sympathetic division on the autonomic nervous procedure causes constriction on the penile arteries and cavernosal sinosoids, forcing blood out on the erectile tissue through erection-related veins which consist of 1 deep dorsal vein, a pair of cavernosal veins, https://phenoman83603.tinyblogging.com/top-latest-five-bigger-erections-urban-news-70451372