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Histology Quiz: The Digestive System By Andrew W. Parsons Copyright 2000, All Rights Reserved. To advance to next slide: -click mouse or “page down” To return to the previous slide: - press “page up” Histology: four layers: -1st Layer? Histology: four layers: -Mucosa -Three subparts? Tissue composition? Histology: four layers: -Mucosa -epithelium: stratified squamous or simple columnar -lamina propria: areolar c.t. -muscularis mucosa: smooth muscle -2nd Layer? Tissue composition? Histology: four layers: -Mucosa -epithelium: stratified squamous or simple columnar -lamina propria: areolar c.t. -muscularis mucosa: smooth muscle -Submucosa: dense irregular c.t. -3rd Layer? Tissue composition? Histology: four layers: -Mucosa -epithelium: stratified squamous or simple columnar -lamina propria: areolar c.t. -muscularis mucosa: smooth muscle -Submucosa: dense irregular c.t. -Muscularis externa: skeletal muscle (upper esophagus), smooth muscle elsewhere -Subparts? Histology: four layers: -Mucosa -epithelium: stratified squamous or simple columnar -lamina propria: areolar c.t. -muscularis mucosa: smooth muscle -Submucosa: dense irregular c.t. -Muscularis externa: skeletal muscle (upper esophagus), smooth muscle elsewhere (-oblique layer: stomach only) -circular layer -longitudinal layer -4th Layer? Tissue composition? Histology: four layers: -Mucosa -epithelium: stratified squamous or simple columnar -lamina propria: areolar c.t. -muscularis mucosa: smooth muscle -Submucosa: dense irregular c.t. -Muscularis externa: skeletal muscle (upper esophagus), smooth muscle elsewhere (-oblique layer: stomach only) -circular layer -longitudinal layer -Serosa or adventitia: simple squamous epith., areolar c.t. Organ?: 450X Structure? Type of Tissue? The Pancreas: 450X Islet Acinous Glands Organ?: 100X Layer? Layer? Layer? Layer? The esophagus: 100X Mucosa Submucosa Muscularis externa Adventitia Organ?: 450X Structure? Layer? Layer? Sub Layer? Sub Layer? Mucosa & submucosa of the colon: 450X Intestinal Gland Submucosa Mucosa Muscularis Mucosa Lamina Propria Organ?: 450X Layer? Sub Layer? Sub Layer? Sub Layer? Layer? The esophagus: 450X Mucosa Epithelium Lamina propria Muscularis mucosa Submucosa Organ?: 40X Structure? The Liver: 40X Hepatic lobule Organ? What are these finger-like structures?: 450X Sub Layer? Sub Layer? Villi of small intestine: 450X Lamina propria Epithelium Organ?: 100X Layer? Layer? Layer? Layer? The esophagus: 100X Adventitia Muscularis externa Submucosa Mucosa Organ: 450X Layer? Layer? Sub Layer? Sub Layer? Sub Layer? The esophagus: 450X Muscularis externa Submucosa Muscularis mucosa Lamina propria Epithelium Organ?: 40X Layer?: THREE sublayers inner direction? middle direction? outer direction? Layer? Layer? The stomach: 40X Muscularis externa: THREE layers inner oblique, middle circular, outer longitudinal Submucosa Mucosa Organ? Layer?: 450X Sub Layer: Type of C.T.? Sub Layer?: what type of cells? Glands are NOT obvious Mucosa of the stomach: 450X Lamina propria: areolar c.t. Epithelium: all goblet cells Glands are NOT obvious What is this grouping of structures called?:450X Vessel? Vessel? Structure? Triad of the Liver: 450X Hepatic artery Hepatic portal vein Bile duct Organ?: 450X Layer? Layer? Gastric glands are NOT obvious Layer? Mucosa & submucosa of the stomach: 450X Mucosa Muscularis mucosa Gastric glands are NOT obvious Submucosa Layers?: 450X Layer? Layer? Layer? Submucosa & muscularis externa of the stomach: 450X Muscularis mucosa Submucosa Muscularis externa Organ?: 40X Structure? Layer? Layer? -direction? -direction? Type of Tissue? Layer? The small intestine: 40X Villus Muscularis externa: -circular -longitudinal Submucosa Intestinal glands Mucosa Layers?: 450X Type of Tissue? Sub Layer Layer? Layer? Sub Layer? Mucosa & submucosa of the small intestine: 450X Intestinal gland Lamina propria Submucosa Mucosa Muscularis mucosa Layers?: 450X Layer? Layer?: Inner or Outer? Submucosa & muscularis externa of the small intestine: 450X Submucosa Muscularis externa: inner circular layer Layers?: 450X Layer? Inner or Outer? Layer? Inner or Outer? Muscularis externa of the small intestine: 450X Muscularis externa: inner circular layer Muscularis externa: outer longitudinal layer Organ?: 100X Layer? Layer ? Type of Glands? Layer? Submucosal or Brunner’s glands of the duodenum: 100X Mucosa Submucosa with submucosal glands Muscularis externa: inner circular layer Organ?: 40X Layer? Layer? Layer? The colon: 40X Submucosa Muscularis externa: Mucosa Organ? Layer?: 450X Type of Tissue? Sub Layer? Sub Layer? Mucosa of the colon: 450X Intestinal gland: simple columnar epithelium Epithelium Lamina propria Layers?: 450X Layer? -Sub Layer: has these “funny” folds Layer Layer? Sub Layer? The colon: 450X Muscularis externa -Inner circular layer: has these “funny” folds Submucosa Mucosa Muscularis mucosa Organ? Layer?: 450X Layer? -Sub Layer: has these “funny” folds Muscularis externa of the colon: 450X Muscularis externa -Inner circular layer: has these “funny” folds Layers?: 450X Sub Layer & direction Layer? Sub Layer & direction? Serosa & muscularis externa of the colon: 450X Muscularis Externa Outer longitudinal layer Serosa Muscularis Externa Inner circular layer Organ?: 450X Vessel? Cell Names? Holes? The Liver: 450X Central Vein Hepatocytes Sinusoids What is this grouping of structures called?: 450X Vessel? Vessel Structure? Triad of the Liver: 450X Hepatic portal vein Hepatic artery Bile duct Organ?: 40X Structure? Type of Tissue? The Pancreas: 40X Islet Acinous glands The End Presentation & Photographs by Andrew W. Parsons Copyright 2000, All Rights Reserved.
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