colonic motility was stimulated either by electrical stimulation of the pelvic nerves ( pns ; 4 hz , 5 ms , 8 v ) acting via enteric ganglia or by i.v . infusion of bethanechol ( 10 nmol kg-1 min-1 ) acting directly on muscarinic receptors on smooth muscle .
C0206417
pns
C0501399
enteric ganglia