Motility and Flow in Small Intestine

by James Christensen, Prof. and Dir.; Div. of Gastroenterology, Dept. of Internal Medicine, Univ. of Iowa Hospitals and Clinics, Iowa City, Iowa,
Joel G. Melville, Adjunct Asst. Professor; Div. of Energy Engrg. and Research Engr., Inst. of Hydraulic Research, The Univ. of Iowa, Iowa City, Iowa,
Enzo O. Macagno, (Aff.M.ASCE), Prof. of Fluid Mechanics; Div. of Energy Engrg. and Research Engr., Inst. of Hydraulic Research, The Univ. of Iowa, Iowa City, Iowa,


Serial Information: Journal of the Engineering Mechanics Division, 1978, Vol. 104, Issue 1, Pg. 11-29


Document Type: Journal Paper

Abstract: Longitudinal and ring contractions of the small intestine have been investigated experimentally and analytically. Main results of research work are summarized. Models - both mathematical and physical - have been developed to investigate and describe the flow induced by the complex wall motion of the small intestine. A stochastic description of the intestinal motility has been developed and applied to predict flow. The present status of pertinent knowledge on intestinal motility is reviewed. A summary review of all papers available on all kinds of peristaltic flow is also included. Areas in need of research are critically considered.

Subject Headings: Mathematical models | Physical models | Walls | Motion (dynamics) | Stochastic processes

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