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Morphological and Quantitative Study of the Myenteric Plexus in the Human Tenia Coli

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Abstract

The longitudinal muscle in the large intestine in humans and some other mammalian species is concentrated in regions known as “tenia coli.” The myenteric plexus under the tenia is believed to be highly developed to control the adjacent large muscle mass, however, data on the innervation of this region are very scarce. We used whole mount preparations of human colon to characterize the organization of the myenteric plexus under the tenia coli (UT) and compared it with the plexus between the tenia (BT). Using histochemical staining for NADPH diaphorase, we found that the meshwork UT was 50% denser than BT, and that the ganglia UT were 30% wider. The density and size of the NADPH‐d positive neurons UT were similar to those of BT. We conclude that the myenteric plexus UT is considerably more developed than BT, and suggest to understand the control of colonic motility, the myenteric plexus UT needs to be further investigated. Anat Rec, 2012. © 2012 Wiley Periodicals, Inc.
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Document Type: Research Article

Affiliations: 1: Laboratory of Experimental Surgery, Hadassah-Hebrew University Medical Center, Mount Scopus, Jerusalem 91240, Israel 2: Department of Surgery, Hadassah-Hebrew University Medical Center, Mount Scopus, Jerusalem 91240, Israel

Publication date: 01 August 2012

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