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He was pointing at the lungs. "A single peristaltic contraction takes place normally in a very few seconds. Here it takes minutes. And the stomach. Notice what the bismuth mixture shows. There is a very slow series of regular wave-contractions from the fundus to the pylorus. Ordinarily one wave takes ten seconds to traverse it; here it is so slow as almost to be unnoticed."
"It settles one's dinner," as the saying is, and gives that feeling of quiet, luxurious bien-aise which would probably exist naturally in a state of primeval health. It promotes, with most persons, the peristaltic movements of the alimentary passages by its relaxing properties. Smoking is eminently social, and favors domestic habits.
But in the end he continued beyond the Essex House with its iron bow and lamp over the entrance, past Cheapside to Webb's Drugstore, where he purchased a bag of Peristaltic lozenges, and after pretending to start away as if nothing more were to be secured there the Gibraltars.
However, this stimulus of distention, like the stimulus of heat above described, though it contributes much to the due action not only of the heart, arteries, and alimentary canal, but seems necessary to the proper secretion of all the various glands; yet perhaps it is not the sole cause of any of these numerous motions: for as the lacteals, cutaneous absorbents, and the various glands appear to be stimulated into action by the peculiar pungency of the fluids they absorb, so in the intestinal canal the pungency of the digesting aliment, or the acrimony of the fæces, seem to contribute, as well as their bulk, to promote the peristaltic motions; and in the arterial system, the momentum of the particles of the circulating blood, and their acrimony, stimulate the arteries, as well as the distention occasioned by it.
The peristaltic motions of the fibres of the stomach become enfeebled by the want of this stimulus of pleasurable sensation, and in consequence stop for a time, and then become inverted; for they cannot become inverted without being previously stopped.
The drugs stimulate peristalsis of the small intestine; each wave from the small intestine breaks on the walls of the cecum, for the colon is loaded with fecal accumulations so that the onrushing contents of the small intestine can not be received by the colon; hence the force of the whole peristaltic impact is spent on the cecum, which must endanger the integrity of the mucosa as well as the musculature.
As soon as the capillary system is reached, the blood will at once ascend into the narrow tube, after which the current is continued with increasing rapidity by means of the pulsation of the pumping ventricle and the powerful peristaltic movement of the digestive tube."
Peristaltic waves issue from a cylindrical tube which extends down a tree and serves as an actual heart! The more deeply we perceive, the more striking becomes the evidence that a uniform plan links every form in manifold nature." The great scientist pointed to another Bose instrument. "I will show you experiments on a piece of tin.
During periods of great sexual excitement the nerves of the urethra and corona seem to possess a peculiar sensitivity and are powerfully stimulated by the violent peristaltic contractions of the muscles in the urethral walls during ejaculation.
The disease was usually caused by the absence of gravity out in space, but it could be brought on later from abuse of the weakened internal organs, such as the intake of too much bad liquor. The man must have been frequenting the wrong space-front bars. Now he was obviously dying. Violent peristaltic contractions seemed to be tearing the intestines out of him, and the paroxysms were coming faster.
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