. The of our own nutrition. n, but may take place along extensive sur-faces of the small intestine. I have repeatedlyseen rhythmic segmentation active throughoutmany loops of the small intestine, thus expos-ing the injected food to the same mixing and ab-sorbing processes as affect the nutriment whichhas come through the stomach in a normalmanner. The Effect of Emotions and Sleep Observations on the stomach of the catshowed that the peristalsis is inhibited when-ever the animal manifests signs of anxiety, rage,or distress. Since the extrinsic innervation of alarge part of the intestina
. The of our own nutrition. n, but may take place along extensive sur-faces of the small intestine. I have repeatedlyseen rhythmic segmentation active throughoutmany loops of the small intestine, thus expos-ing the injected food to the same mixing and ab-sorbing processes as affect the nutriment whichhas come through the stomach in a normalmanner. The Effect of Emotions and Sleep Observations on the stomach of the catshowed that the peristalsis is inhibited when-ever the animal manifests signs of anxiety, rage,or distress. Since the extrinsic innervation of alarge part of the intestinal tract is the same asthat of the stomach, it is of interest to note theeffect of emotional states on the movements ofthe intestines. Esselmont, in a study of thedogs intestine, noted constantly after signs ofemotion a marked increase of activity lasting foronly a few moments. Fubini also observed thatfear occasioned more rapid peristalsis. Thereis no doubt that many emotional states are a L 3»3 J The Z. of Our Own Nutrition. strong stimulus to peristalsis, but it is equally-true that other emotional states inhibit the cat the same conditions which stop themovements of the stomach stop also the move-ments of the intestines. The female cats used in these observationsordinarily lie quietly on the holder and makeno demonstration. Sometimes, however, with only a little premonitoryrestlessness, the cat sud-denly flies into a rage,lashing her tail from sideto side, pulling and jerk-ing with every limb, andbiting at everything nearher head. During suchexcitement, and for somemoments after the animalbecomes pacified again,the movements, both of the large and small in-testine, entirely cease. Such violence of excite-ment is not necessary to cause the movementsto stop; a cat which was restless and contin-ually whining while confined to the holdershowed no signs of intestinal movements dur-ing any period of observation (one periodlasted more than an hour), although t
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