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Patterns of intestinal motility

N W Weisbrodt

    Annual Review of Physiology
    |January 1, 1981
    PubMed
    Summary

    The small intestine exhibits diverse contraction patterns for content propulsion in healthy and diseased states. These patterns ensure consistent movement, even with varying motility signals.

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    Area of Science:

    • Gastroenterology
    • Physiology

    Background:

    • The small intestine displays complex contractile patterns crucial for moving contents.
    • Understanding these patterns is key to comprehending intestinal function.

    Purpose of the Study:

    • To elucidate the various contractile patterns of the small intestine in vivo.
    • To investigate how these patterns contribute to intestinal content propulsion.

    Main Methods:

    • Observation of in vivo small intestine motility in healthy humans, dogs, and rats.
    • Analysis of contractile patterns in both fasted and fed states.
    • Examination of motility patterns in certain disease states.

    Main Results:

    • Two distinct propulsive patterns identified in healthy animals: intermittent and steady movement (fasted), and uniform net aboral movement (fed).
    • Propulsion velocity remains consistent over time in rats despite different patterns.
    • Disease states can introduce new patterns, enabling both oral and aboral propulsion.

    Conclusions:

    • Small intestine propulsion is influenced by multiple contractile patterns.
    • Integration of various motility control subsystems produces these diverse patterns.
    • Further research into these patterns can reveal insights into gastrointestinal disorders.

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