Effects of drugs and of electrical stimulation on the muscularis mucosae of rabbit large intestine

Abstract
1 The muscularis mucosae of the rabbit large intestine shows spontaneous rhythmic contractions with an average frequency of about 11/minute. 2 The muscularis mucosae responds to acetylcholine, adrenaline and noradrenaline in a manner similar to that of whole segments of terminal large intestine. 3 The muscularis mucosae would seem to have a cholinergic motor innervation.