AandP 2 Lab 9 Lecture

AandP 2 Lab 9 Lecture - Biology 112 Lab 9: The Digestive...

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Overview of the Digestive System and its Processes Know each major process, where it takes place, and the relationships between FORM and FUNCTION Biology 112 Lab 9: The Digestive System
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The Esophageal Wall (c.s.) The only digestive organ having a mucosa lined with STRATIFIED SQUAMOUS E.T.!!! The Stomach Parietal Cells Gastric Glands Gastric Pits
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Small Intestine: Features that Increase SURFACE AREA SURFACE AREA Circular Fold Brush Border (composed of Microvilli) Villi Wall of Duodenum Duodenal (Brunner’s) Glands Also note relative numbers of goblet cells - compare with other regions of the intestines
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Wall of Jejunum Note that there are no special structures in the submucosa Also note the increasing abundance of goblet cells Ileum with Peyer’s Patches (Lymphatic Nodules) Also note the increasing abundance of goblet cells Peyer’s Patches
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The Appendix Abundant lymphatic tissue in submucosa Mucosa composed of PITS rather than villi All of our appendix slides show a large blob of “gunk”
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AandP 2 Lab 9 Lecture - Biology 112 Lab 9: The Digestive...

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