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12 Cards in this Set
- Front
- Back
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What type of tissue forms the mucosa of the esophagus?
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non-keratinized stratified squamous epithelium
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What supports the mucosa of the esophagus?
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The lamina propia
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Yhe lamina propia, the loose connective tissue layer, is seperated by the submucosa by what?
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by smooth muscle, also called muscularis mucosa
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What glands are in the submucosa?
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small mucous glands whose long ducts empty into the esophageal lumen
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Around the submucosa, is a 2-layer muscle coat. What is the inner layer?
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closely wound circular muscle
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Around the submucosa, is a 2-layer muscle coat. What is the outer layer?
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longitudinal muscle
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What type of muscle comprises these two layers in the upper esophagus?
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striated muscle
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The striated muscle of the esophagus runs from the pharynx to approximately what level?
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The level of the aortic arch
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What happens to the striated muscle, the circular layer surrounding the submucosa and then the longitudinal layers surrounding the circular layers at the level of the aortic arch?
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It gradually transitions into smooth muscle
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What layer surrounds the outside of the esophagus?
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the adventitia, containg many elastic fibers
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What is not surroundeding the outside of the esophagus, unlike the rest of the digestive tract
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There is no serosa
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where did we end
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disc 3
track 2 01:42 |
