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28 Cards in this Set
- Front
- Back
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Esophagus histology
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Nonkeritinized stratified squamous epithelium
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Stomach histology
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gastric glands
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Duodenum histology
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Villi and microvilli inc absorptive surface
Brunner's glands (submucosa) and crypts of Lieberkuhn Tubular glands pH ~9 |
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Jejunum histology
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Jejunum has largest number of goblet cells in the small intestine
Plicae circulares and crypts of Lieberkuhn |
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Ileum histology
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Peyer's patches (lamina propria, submucosa), plicase circularis (proximal ileum), and crypts of Lieberkuhn
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Colon histology
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Colon has crypts but no villi
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Esophageal anatomy & histology
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Upper 1/3 striated muscle: voluntary control
Middle 1/3 striated muscle and smooth muscle Lower 1/3 smooth muscle |
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Foregut
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Blood: Celiac A
Innervation: Vagus N Vertebral level: T12/L1 Structures supplied: stomach to proximal duodenum; liver, gall bladder, pancreas, spleen (mesoderm) |
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Midgut
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Blood: SMA artery
Innervation: Vagus N Vertebral level: L3 Stuctures supplied: distal duodenum to proximal 2/3 of transverse colon |
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Hindgut
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Blood: IMA artery
Innervation: Pelvic Vertebral level: L3 Structures supplied: Distal 1/3 of transverse colon to upper portion of rectum; splenic flxure is a watershed region |
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Drugs and endogenous hormones regulate the secretion of gastric acid
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Stim = histamine, Ach, gastrin
Inhib = PG, somatostain, secretin, GIP, PPI's, H2 blockers, antimuscarinic |
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Barrett's esophagus
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Specialized columnar epithelium seen in a biopsy from distal esophagus
Goblet cells seen in the distal esophagus |
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Herpes simplex
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biopsy of a pt with esophagitis reveals large pink intranuclear inclusions and host cell chromatin that is pushed to the edge of the nucleus
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Acute gastritis
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Stomach biopsy reveals neutrophils above the basement membrane, loos of surface epi, and fibrin containing purulent exudate
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Achalasia
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An esophageal biopsy reveals a lack of ganglion cells between the inner and outer muscular layers
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Warthin tumor
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Biopsy of mass in parotid gland reveals a double layer of columnar epithelial cells resting on a dense lymphoid stroma
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Maltoma
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Small intestine biopsy reveals small lympocytes with irregular nuclear contours and proliferation f these lympohcytes into the mucosa and epithelial glands
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Epiphrenic diverticuli
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Outpouching of all layers of the esophagus found just above the LES
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Chronic reflux esophagitis
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Basal cell hyperplasia, eosinophlia, and elongation of lamina propria papilla seen in biopsy of esphagus
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Chronic gastritis
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Stomach biopsy reveals lymphoid aggregates in the lamina propria, columnar absorptive cells and atrophy of glandular structures
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Esophageal web
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Protrusion on the mucosa in the upper esophagus
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CMV
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Biopsy of a pt with esophagitis reveals enlarged cells, intranuclear and cytoplasmic inclusions and a clear perinuclear halo
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ZE syndrome
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Diffuse thickening of gastric folds, elevated serum gastrin levels, biopsy reveals glandular hyperplasia without foveolar hyperplasia
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Pleomorphic adenoma
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Biopsy of mas sin parotid gland shows both epithelial and mesenchymal differentiation
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Mucoepidermoid tumor
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Biopsy of mass from parotid gland reveals a carcinoma composed of mostly mucus secreting cells but also some squamous cells and intermediate hybrids of both
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Candida
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A PAS postive stain on biopsy obtained from pt with esophagitis reveals hyphenated organisms
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H. pylori
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Most common cause of duodenal ulcers
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Esophageal pouch found in upper esophagus
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Zenker's diverticuli
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