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37 Cards in this Set
- Front
- Back
Identify the structure and layers. 7 layers.
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Esophagus.
Mucosa: Stratified Squamous Epithelium, lamina propria, muscularis mucosa. Submucosa: CT Muscularis Externa: inner circular later, outer longitudinal layer Adventitia: CT (no mesothelium) |
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identify structures and epithelial types. how far do these epithelial types go in each direction?
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esophagus: strat. squamous from oral cavity to esophagus
stomach: simple columnar from stomach to recto-anal junction |
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identify structures and epithelial types
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esophagus on left; strat. squamous
stomach on right; simple columnar |
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identify this structure
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stomach
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identify
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surface mucous cells in the stomach
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identify
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EM of a parietal cell.
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ID
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parietal cell
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identify
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parietal cell
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identify the cells and name their function. what kind of stain has to be used to distinguish these?
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enteroendocrine cells; they secrete hormones.
silver stain must be used, called "argentaffin cells." |
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what is this and what helps it increase surface area?
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intestine. plicae increase SA.
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identify the structure on either side of this junction. how can you tell?
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duodenum on the left; stomach on the right. duodenum has villi.
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where is this? what projections are these?
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small intestine; villi.
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what two structures are most obvious?
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villi and microvilli
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where is this?
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jejunum
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where is this?
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ileum.
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Where is this? What structures are at the bottom?
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Ileum; peyer's patches.
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what structure is pointed out? what does it do?
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a paneth cell; secretes lysozyme.
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where is this?
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colon
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where is this?
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colon
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where is this and what particular portion is being shown?
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mucosa of the colon.
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where is this?
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appendix
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where is this?
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appendix
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identify this junction and changes in epithelium
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Rectoanal junction; strat. squamous on left and simple columnar on right.
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Appendix
top: lumen left: lymphoid tissue right: muscle layers |
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what's this?
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colon
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what's this?
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colon
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identify
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colon
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Duodenum
left: villi right: Brunner's glands |
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duodenum
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esophagus
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esophageal/cardia junction
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ileum
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ileum; peyer's patch
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Anorectal junction
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Stomach
Top to bottom: Long pits with mucus glands Short glands Muscularis mucosa Submucosa |
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top: surface and mucus neck cells
bottom: parietal cells square: chief cells |
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