Digestive system

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Author:
andreathors16
ID:
93952
Filename:
Digestive system
Updated:
2011-07-13 19:38:48
Tags:
Intro AP
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Description:
mini course 6
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  1. The first region of the small intestine is called the
    duodenum
  2. the esophagus empties into the
    stomach
  3. The only enzyme saliva acts on is
    starches
  4. ther are how many pairs of salivary glands?
    3
  5. the layer of tissue nearest the lumen of the smoach is the
    mucosa
  6. the complete digestive tube is how long?
    27 ft
  7. layers of digestive tract
    • Inner: mucosa
    • Imiddle: submucosa
    • Omiddle: muscularis externis
    • Outter: serosa
  8. small intestine
    • duodenum
    • jejunum
    • ileum
  9. mouth
    • recieves food and initiates the mechanical breakdown
    • releases carbodrases
  10. esophagus
    • connecting the throat to the stomach.
    • stuck between the spine and trachea so small region
  11. large intestines
    • colon, 5 ft
    • ascending colon
    • transverse colon
    • decending colon
    • ATD
  12. partialperitoneal
    lines the abdomin walls, adherent to the muscles
  13. visceral peritoneal
    • forms the
    • serosa: thin outter layer of tissue of the digestive organs.
    • holds organs together
  14. mucosa
    • produces digestive enzymes
    • gobblet cells: secrete moucous that protects intestines.
    • secretes hormones
  15. submucosa
    loose connective tissue
  16. muscularis
    double layer of tissue with muscle fibers
  17. serosa
    • visceral peritoneum
    • holds organs together
  18. when fibers thicken
    sphincters are formed. they control the movement of the food
  19. villi
    produce digestive enzymes and absorb food that are digested
  20. The layer with a thin peritoneal membrane is called the
    serosa
  21. The jejumn is part of the
    small intestine
  22. The appendix is found on the
    cecum (bottom of colon)
  23. salivary glands in the mouth
    • parotid: largest in front of the ear
    • submaxillary: located in the front of the mouth. secretes almase and mucos
    • sublingual: floor of the mouth under tounge. secrets mucos
  24. amylase
    breaks down food into discharides
  25. mucous
    binds food together.
  26. areas of the stomach
    cardiac sphinctor, fundus, body, pyloric sphinctor
  27. Glands of the stomach
    in the mucosa, gastric glands produce gastric acids
  28. muscle fibers of stomach
    longways fibers and circular in order to mix and churn food
  29. duodenal papilla
    small raised area for digestive enzymes and bile secretions to empty into.
  30. ileocecol valve
    valve between small and large intestine
  31. All protiens must be broken down into
    amino acides before they can enter the blood
  32. the secretion of some digestive juices is the result of
    hormonal control
  33. peristalsis refers to the muscular wave along the
    digestive tract
  34. some carb digestion
    begins in the mouth
  35. one of ones BMR refers to
    basil metabolic rate

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