1 segments of guinea-pig ileum and the myenteric plexus-longitudinal smooth muscle preparation were used for a study of the actions of adrenaline , noradrenaline , isoprenaline , ephedrine and phenylephrine on the responses of coaxially stimulated ileum at different distances from the ileocaecal valve.2 the responses of the ileum to electrical stimulation were suppressed by adrenaline , nonadrenaline and ephedrine , while phenylephrine and isoprenaline inhibited them only partially.3 the twitch inhibition elicited by these adrenoceptor agonists was the same at all distances from the ileocaecal valve .
C0028351
noradrenaline
C0014563
adrenaline