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MICROSCOPIC STRUCTURE OF THE ESOPHAGUS, STOMACH, AND SMALL AND LARGE INTESTINE  HISTOPHYSIOLOGY OF THE INTESTINE BLOOD  AN...
Recommended addresses: http://www.med.muni.cz/histol/ Sylabus-zahr.rtf http://www.med.muni.cz/histol/ vseob2pda.rtf http:/...
 
D igestive system consists of:
GENERAL STRUCTURE OF THE ALIMENTARY CANAL
 
 
 
Esophagus
Stomach  ( lat. ventriculus,  ř. gaster, stomachus) segment of alimentary canal that digests food and  secretes hormones f...
 
Cardia ventriculi: a narrow circular band (1,5 -3,0 cm in with) at the transition between esophagus and stomach change of ...
 
Fundus et corpus ventriculi:
 
Mucosa: - simple columnar epithelium - lamina propria mucoae - loose areolar conn. tissue - lamina muscularis mucoae
lamina propria is penetrated with branched tubular glands-  gastric (fundic) glands 3 parts:  base, body  and  neck 4 cell...
an enzyme typical of oxyntic (parietal)  cells is  carbonic anhydrase
Pylorus ventriculi:  deeper gastric pits, reticular conn. tissue, pyloric glands
 
<ul><li>Small intestine  (intestinum tenue) </li></ul><ul><li>5–7 m  in length </li></ul><ul><li>digestion, absorption </l...
circular plicae (valves of Kerckring, plicae circulares) Intestinal villi   (villi intestinales) Microvilli
Small intestine   - surface circular plicae (plicae of Kerckring, plicae circulares) <ul><li>Intestinal villi (villi intes...
 
 
<ul><li>Tunica mucosa </li></ul><ul><li>Epithelium  </li></ul><ul><li>Lamina propria mucosae </li></ul><ul><li>Lamina musc...
Paneth´s cells
<ul><ul><ul><ul><li>Intestinal villus (-i) </li></ul></ul></ul></ul>
intestinal villus
<ul><li>Duodenum </li></ul>
Jejunum
BLOOD  AND LYMPH  CIRCULATION
 
 
 
<ul><li>Large intestine  (intestinum crassum) </li></ul><ul><li>1,5 m   in length </li></ul><ul><li>intestinum caecum  wit...
Large intestine  - surface semilunar plicae absence of intestinal  villi   crypts of Lieberkühn  retained
 
 
Vermiform appendix
 
The rectum:
 
 
 
<ul><li>Obecná stavba stěny trávicí trubice </li></ul>
 
 
 
 
 
 
 
 
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Digestive sy 2

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Digestive sy 2

  1. 1. MICROSCOPIC STRUCTURE OF THE ESOPHAGUS, STOMACH, AND SMALL AND LARGE INTESTINE HISTOPHYSIOLOGY OF THE INTESTINE BLOOD AND LYMPH CIRCULATION
  2. 2. Recommended addresses: http://www.med.muni.cz/histol/ Sylabus-zahr.rtf http://www.med.muni.cz/histol/ vseob2pda.rtf http://www.med.muni.cz/histol/ atlas.htm
  3. 4. D igestive system consists of:
  4. 5. GENERAL STRUCTURE OF THE ALIMENTARY CANAL
  5. 9. Esophagus
  6. 10. Stomach ( lat. ventriculus, ř. gaster, stomachus) segment of alimentary canal that digests food and secretes hormones food mixed with gastric juice = chyme volume cca 2 l
  7. 12. Cardia ventriculi: a narrow circular band (1,5 -3,0 cm in with) at the transition between esophagus and stomach change of the epithelium mucous cardiac glands in the lamina propria (mucus + lysozyme)
  8. 14. Fundus et corpus ventriculi:
  9. 16. Mucosa: - simple columnar epithelium - lamina propria mucoae - loose areolar conn. tissue - lamina muscularis mucoae
  10. 17. lamina propria is penetrated with branched tubular glands- gastric (fundic) glands 3 parts: base, body and neck 4 cell types: - chief (pepsinogenic) - parietal (oxyntic, HCl) - nucous neck - enteroendocrine gastric juice
  11. 18. an enzyme typical of oxyntic (parietal) cells is carbonic anhydrase
  12. 19. Pylorus ventriculi: deeper gastric pits, reticular conn. tissue, pyloric glands
  13. 21. <ul><li>Small intestine (intestinum tenue) </li></ul><ul><li>5–7 m in length </li></ul><ul><li>digestion, absorption </li></ul><ul><li>3 segments : duodenum, jejunum and ileum </li></ul>
  14. 22. circular plicae (valves of Kerckring, plicae circulares) Intestinal villi (villi intestinales) Microvilli
  15. 23. Small intestine - surface circular plicae (plicae of Kerckring, plicae circulares) <ul><li>Intestinal villi (villi intestinales) </li></ul><ul><li> Microvilli </li></ul>
  16. 26. <ul><li>Tunica mucosa </li></ul><ul><li>Epithelium </li></ul><ul><li>Lamina propria mucosae </li></ul><ul><li>Lamina muscularis mucoase </li></ul><ul><li>The epithelium: </li></ul><ul><li>absorptive cells: enterocytes </li></ul><ul><li>secretory cells: goblet cells, Paneth´s cells, enteroendocrine cells </li></ul>
  17. 27. Paneth´s cells
  18. 28. <ul><ul><ul><ul><li>Intestinal villus (-i) </li></ul></ul></ul></ul>
  19. 29. intestinal villus
  20. 30. <ul><li>Duodenum </li></ul>
  21. 31. Jejunum
  22. 32. BLOOD AND LYMPH CIRCULATION
  23. 36. <ul><li>Large intestine (intestinum crassum) </li></ul><ul><li>1,5 m in length </li></ul><ul><li>intestinum caecum with vermiform appendix (appendix vermiformis), colon (colon ascendens, transversum, descendens, sigmoideum) and rectum (intestinum rectum) </li></ul><ul><li>faeces </li></ul>
  24. 37. Large intestine - surface semilunar plicae absence of intestinal villi crypts of Lieberkühn retained
  25. 40. Vermiform appendix
  26. 42. The rectum:
  27. 46. <ul><li>Obecná stavba stěny trávicí trubice </li></ul>

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