Light Micrograph of a Submucosal Gland In the Esophagus
Image ID: 14337
LM of a submucosal gland in the esophagus. The secretory part of the gland contains groups of tightly packed mucous acini (MA) located in the submucosa (SM) and draining into ducts that penetrate the muscularis mucosae (MM). The duct at the left crosses the lamina propria and opens onto the surface (*). Epithelium lining the duct merges with stratified epithelium (Ep) on the mucosal surface. The submucosa is richly vascularized connective tissue with many lymphatic channels (Ly) and blood vessels (BV). A predominance of elastic fibers in this layer provides the esophageal wall with considerable distensibility. 160×. H&E.
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