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Effect of Nervous Stimulation on Pyloric Resistance and Configuration

  • K. Schulze-Delrieu
  • B. Wright
  • C. Lu
  • S. S. Shirazi

Abstract

The two loops formed by the circular muscle within the pyloric segment (Figure 1) differ in their spontaneous and evoked mechanical activity: strips from the left canalis loop (or intermediate gastric sphincter) generate phasic contractions and stimulation of their nerves evokes a contraction. Strips from the right canalis loop (the distal sphincter) generate a high baseline tension and relax on nervous stimulation [1]. The mechanical end-result of nervous stimulation of the entire pyloric segment is controversial: in manometric studies the cat pylorus relaxes [2], whereas in studies of flow across the pylorus stimulation produced a decrease of flow consistent with pyloric contraction [3].

Keywords

Nervous Stimulation Gastrointestinal Motility Pyloric Sphincter Manometric Study Baseline Flow 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© MTP Press Limited 1984

Authors and Affiliations

  • K. Schulze-Delrieu
  • B. Wright
  • C. Lu
  • S. S. Shirazi

There are no affiliations available

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