Motility and Pressure Phenomena of the Esophagus



The esophagus is a muscular tube consisting of three functional regions: the upper and lower esophageal sphincters, and the esophageal body. On high-resolution manometry, the esophageal body consists of three contracting segments: the proximal striated muscle segment, followed by two smooth muscle segments, separated by pressure troughs. The sphincters and contracting segments function in contiguity to form a chain of relaxing and contracting segments, modulated by cortical, brain stem, and peripheral influences.


Motility Pressure phenomena Esophagus Esophageal contraction ­segments Striated muscle esophagus Smooth muscle esophagus 


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© Springer Science+Business Media New York 2013

Authors and Affiliations

  1. 1.Division of GastroenterologyBarnes Jewish Hospital, Washington University School of MedicineSt. LouisUSA
  2. 2.Division of GastroenterologyWashington University School of MedicineSt. LouisUSA

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