The organization of the lamina muscularis mucosae in the human esophagus

The structural organization of the lamina muscularis mucosae of the human esophagus was studied by light microscopy and scanning electron microscopy (SEM). The organization of the lamina muscularis mucosae varied considerably among the cervical, the thoracic, and the abdominal part of the esophagus....

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Veröffentlicht in:Archives of Histology and Cytology 2003, Vol.66(3), pp.281-288
Hauptverfasser: Nagai, Kaoruko, Noguchi, Tsuyoshi, Hashimoto, Tsuyoshi, Uchida, Yuzo, Shimada, Tatsuo
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container_end_page 288
container_issue 3
container_start_page 281
container_title Archives of Histology and Cytology
container_volume 66
creator Nagai, Kaoruko
Noguchi, Tsuyoshi
Hashimoto, Tsuyoshi
Uchida, Yuzo
Shimada, Tatsuo
description The structural organization of the lamina muscularis mucosae of the human esophagus was studied by light microscopy and scanning electron microscopy (SEM). The organization of the lamina muscularis mucosae varied considerably among the cervical, the thoracic, and the abdominal part of the esophagus. In the cervical part, the lamina muscularis mucosae was not well developed and only islets of the smooth muscle bundles were scattered within the connective tissue. In the thoracic part,the lamina muscularis mucosae consisted of several layers of smooth muscle bundles, individual muscle cells of which ran in a longitudinal direction. In the abdominal esophagus near the cardia, the muscular bundles in the lamina muscularis mucosae ran in various directions forming a reticular configuration. The differences in density and arrangement of the lamina muscularis mucosae are discussed in relation to the swallowing of food and submucosal invasion of esophageal cancer.
doi_str_mv 10.1679/aohc.66.281
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source MEDLINE; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals; J-STAGE (Japan Science & Technology Information Aggregator, Electronic) Freely Available Titles - Japanese
subjects Adult
Aged
Aged, 80 and over
Carcinoma - pathology
Carcinoma - ultrastructure
Esophageal Neoplasms - pathology
Esophageal Neoplasms - ultrastructure
Esophagus - anatomy & histology
Esophagus - ultrastructure
Humans
Intestinal Mucosa - anatomy & histology
Intestinal Mucosa - ultrastructure
Microscopy, Electron, Scanning
Middle Aged
Muscle, Smooth - ultrastructure
title The organization of the lamina muscularis mucosae in the human esophagus
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