Cannon's ring

Cannon's ring definition - medical

Can·non's ring (kănˈənz)

noun
A tonically contracted muscular band in the transverse colon close to the hepatic flexure.

The American Heritage® Medical Dictionary Copyright © 2009 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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