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Chapter 2 (page 9) |
 | | Intraluminal pressure studies in the stomach and duodenum showed an increase in pressure during peristaltic and segmental (phasic) contractions, with a simultaneous change in direction of the folds to longitudinal. |
| | In vivo experimental studies showed that during luminal distension of the small bowel the folds were circular; appropriate electrical stimulation of the serosa caused contraction of the walls with stimultaneous change in direction of the folds to longitudinal. |
| | Two anticholinergic substances (propantheline bromide and hyoscine-N-butylbromide) administered intramuscularly in therapeutic doses in normal, adult, informed volunteers caused the walls of the small bowel to relax (with consequent distension of the lumen), and a simultaneous change in direction of the folds to circular. |
| med.plig.org /2/9.html (1032 words) |
