Digestive 1 Flashcards
Tunica mucosa of most organs of the digestive tract consists of: Lamina epithelialis,
Lamina propria as loose collagenous CT and Lamina muscularis mucosae as thin smooth
muscle layers
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Smooth muscles are typical muscle tissues for Radix linguae
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Radix linguae contains many lymphoid nodules as well as mucous Weber´s glands
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Radix linguae contains predominantly the filiform and fungiform papillae
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Dorsum linguae contains all layers like the rest of digestive tract, including Tunica serosa
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Papillae filiformes are the most numerous structures of Dorsum linguae and do NOT
contain any taste buds
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Papillae of dorsum linguae are formed by stratified squamous epithelium and loose
collagenous CT
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Papillae (circum-)vallate are numerous and scattered among papillae filiformes in Dorsum
linguae
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Papillae circumvallatae contain taste buds within the epithelial lining stratified squamous
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Papilae circumvallatae are lined by stratified squamous nonkeratinized epithelium and are
in close connection with ducts of von Ebners serous glands
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Type I and II cells of taste buds have special vesicles in their cytoplasm responsible for
taste perception
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Middle third of Oesophagus contains both striated and smooth muscles and is covered by
stratified squamous epithelium
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The oesophageal submucosa contains purely serous glands
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The oesophagus contains only one type of muscle tissue in its wall along the entire length
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The epithelium of oesophageal mucosa is stratified squamous nonkeratinized
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The epithelium of oesophageal mucosa is a layered squamous non-horned
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Fundic glands are similar to the glands of the stomach body – they are made up of 5 types
of cells
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Gland in the body of stomach are made up predominantly of mucous cells
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Parietal cells in gastric glands (Gll. Gastricae propriae) are responsible for the production
of proenzyme pepsinogen
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Parietal cells have eosinophilic cytoplasm and are located in the middle part of gastric
glands
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Tunica muscularis externa of the stomach consist of 3 layers of striated muscles
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Tunica serosa covers the outer surface of the wall of the stomach and small intestine
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The epithelium of pyloric mucosa is stratified squamous nonkeratinized
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Pyloric Tunica muscularis externa consists of 3 layers of striated muscle
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Foveolae gastricae of Pylorus are deep and pyloric clusters are branched tubulously
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The pyloric glands (stomach) are composed mainly of mucous cells
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Brunner´s glands are Duodenum-specific mucosal glands
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Villi intestinalis are apical projections of cytoplasm of resorptive cells called enterocytes
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Folds that are formed in the small intestine by the mucosa and submucosa are referred to
as villi intestinalis
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Algae that are formed in the small intestine by the mucosa and submucosal ligament are
referred to as kicks
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The mucosa of small intestine contains simple tubular glands located in Lamina propria
mucosae
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Plexus submucosus Meissneri is found only in the small intestine
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The clustered lymph nodes in the ileal mucosa are referred as Peyer´s patches
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Grouped lymph nodes in ileac mucosa are referred to as Peyer´s patches
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Peyer´s patches are aggregates of lymphoid nodules located in the mucosa of the Ileum
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Lieberkühn crypts are found only in the mucosa of small intestine
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Lieberkühn crypts as tubular glands are located only in the mucosa of small intestine
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In the wall of the Appendix vermiformis we can observe a significant accumulation of
lymphoid nodules which consist mainly of B-lymphocytes
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The large intestine is mostly covered by serosa, some parts are covered by adventitia
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Mucosa of large intestine forms villi in order to increase the resorption area
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Villi of large intestine are also referred to as Lieberkühn crypts
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Glands of the large intestine are made up mainly of mucous (goblet) cells
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Paneth cells are observable in the crypts of Lieberkühn of Colon sigmoideum
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Taeniae coli are reinforced strips of circulatory stored smooth muscle of the colon wall
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Enterocytes possess non-motile stereocilia on their apical surfaces, thus increasing the
surface of absorptive area
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