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Slide 155, pharynx, H&E, 4x obj. mucosal epithelium lamina propria
elastic fibers skeletal muscle muscularis externa
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Slide 152, pharynx, H&E, 10x obj. mucosal epithelium lamina propria
elastic fibers skeletal muscle of muscularis externa
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Slide 152, pharynx, H&E, 4x obj. mucosal epithelium elastic fibers
lamina propria skeletal muscle muscularis externa mucous glands
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Slide 153, esophagus, H&E, 4x obj.
mucosal epithelium mucosa lamina propria muscularis mucosa submucosal glands submucosa muscularis externa (smooth muscle)
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Slide 153, esophagus, H&E, 10x obj. muscularis externa (smooth muscle)
epithelium of mucosa lamina propria muscularis mucosa submucosal glands submucosa muscularis externa (smooth muscle)
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Slide 153, esophagus, H&E, 10x obj.
muscularis externa (inner circular layer of smooth muscle) myenteric plexus ganglion cells of myenteric plexus muscularis externa (outer longitudinal layer of smooth muscle) 40x obj.
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transition to cardiac region
Slide 155, cardio-esophageal junction transition to cardiac region esophageal region fundic region
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Slide 155, esophageal region, H&E, 20x obj.
stratified epithelium of mucosa muscularis mucosa muscularis externa (inner circular layer Of smooth muscle) submucosa
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Slide 155, cardiac region, H&E, 20x obj.
gastric pit tangential section of esophageal muscosa cardiac glands (mucous) muscularis mucosa
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Slide 155, cardiac region, H&E, 40x obj.
gastric pit extension of muscularis mucosa cardiac gland (mucous)
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Slide 155, fundic region, H&E, 4x obj.
gastric pits gastric glands
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Gastric glands Slide 155, 40x obj. Slide 155, 20x obj.
PC PC CC CC muscularis mucosa PC = parietal cells CC = chief cells Slide 156, 40x obj. Slide 157, 40x obj. PC CC PC CC muscularis mucosa
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Slide 156, stomach, H&E, 4x obj. gastric pits parietal cells (mostly)
glands mucosa chief cells (mostly) muscularis mucosa submucosa innermost oblique layer muscularis externa middle circular layer outer longitudinal layer
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(PAS stains mucus purple)
Slide 160, stomach, PAS, 10x obj. (PAS stains mucus purple) gastric pits gastric glands muscularis mucosa submucosa
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transition to duodenum
Slide 162, pylorus-duodenum junction transition to duodenum pylorus duodenum
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Slide 162, pylorus, 10x obj. gastric pits muscularis mucosa
pyloric glands submucosa muscularis externa
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Slide 162, pylorus, 40x obj. gastric pit pyloric gland (mucous)
muscularis mucosa
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pyloric glands (above muscularis mucosa)
Slide 162 transition to duodenum 4x obj. pyloric glands (above muscularis mucosa) submucosal (Brunner’s) glands --below muscularis mucosa pyloric mucosa duodenal mucosa
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Slide 162, transition to duodenum, 10x obj.
Brunner’s glands muscularis mucosa submucosal (Brunner’s) glands (mostly below muscularis mucosa but some portions extend above) duodenal mucosal epithelium
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Slide 162, duodenum, 4x obj. duodenal mucosa muscularis mucosa
submucosa Brunner’s glands
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Slide 162, duodenum, 20x obj. duodenal epithelium lamina propria
Brunner’s glands muscularis mucosa Brunner’s glands
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