Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Manometric tracing showing characteristics of the LES and UES high-pressure zones function during a spontaneous swallow. Note the resting pressure before and after swallow. The lower and upper sphincteric pressure relaxes transiently to accommodate swallow and regain the resting tone as the spontaneous swallow transits through the respective esophageal segments.
