Digestive System

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david20x6
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252614
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Digestive System
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2013-12-14 20:59:16
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digestive system alimentary canal gastro intestinal tract
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Flashcards for the unit 5 digestive system test.
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  1. The alimentary canal and gastrointestinal tract (G-I tract) are known as the a. cardio-vascular system b. muscular system c. digestive system d. nervous system
    c. digestive system
  2. All of the following are functions of the digestive system except? a. ingestion b. propulsion c. protection d. mixing. e. secretion f. digestion g. absorption h. assimilation i. egestion
    c. protection
  3. Secretion occurs in all of the following organs except: a. mouth b. stomach c. liver d. pancreas e. small intestine f. large intestine
    f. large intestine
  4. This is the mucous membrane of the digestive tract. a. mucosa b. submucosa c. musculosa = muscularis externa
    a. mucosa
  5. This layer of the mucosa is simple columnar in the stomach, small intestine, and large intestine. It is thin for diffusion and absorption. Many goblet cells secrete mucus for protection of walls from acids, bases, and digestive enzymes. a. epithelium b. lamina propia c. muscularis mucosae = muscularis interna
    a. epithelium
  6. this layer of the muscosa is a thin layer of scalloped smooth muscle. It is responsible for local reflexes for movement over small areas of organ or tissue. Works with Wills' = Meissner's plexus. a. epithelium b. lamina propria c. muscularis mucosae
    c. muscularis mucosae
  7. This layer of the mucosa is a layer of areolar CT with many capillary beds and small nerve endings. a. epithelium b. lamina propria c. muscularis mucosae
    b. lamina proparia
  8. this layer of the digestive tract is dense irregular CT. it contains large and small BV and nerves. a. mucosa b. submucosa c. musculosa d. serosa
    b. submucosa
  9. This is a smaller nerve network thru most digestive tract organs. It controls local movements and secretions by means of locallized reflexes. It works with the muscularis mucosae. a. lamina propria b. wills' plexus c. myenteric plexus
    b. wills' plexus/meissner's plexus
  10. This is a larger nerve network thru most digestive tract organs. It sends stimuli and receives motor commands from the sympathetic and parasympathetic branches of the autonomic nervous system. a. epithelium b. submucosa c. wills' plexus d. myentric plexus
    d. myentric plexus
  11. This is stratified squamous epitheliun. It is the juncture of outer dry skin and inner moist mucous membranes. a. lips b. cheeks c. soft palate d. epiglottis
    a. lips
  12. The bony, anterior roof of the mouth. 2 maxillary and 2 palatine bones. separates mouth from nasal cavities. a. lips b. hard palate c. soft palate d. incisor
    b. hard palate
  13. Used for tearing, especially meat. a. incisors b. canines c. premolars d. molars e. wisdom teeth
    b. canines
  14. used for grinding food. a. incisors b. canines c. premolars d. molars e. wisdom teeth f. a & b g. b & c h. none of the above i. some of the above j. all of the above
    i. some of the above
  15. Usually have no purpose/ are useless. should be extracted if impacted. a. incisors b. canines c. premolars d. molars e. wisdom teeth
    e. wisdom teeth
  16. used for grinding food. a. canines b. incisors c. wisdom teeth
    c. wisdom teeth
  17. covers the crown of teeth. hardest substance in the body. brittle. made of Ca++ salts and collagen. a. crown b. neck. c. roots d. enamel e. dentin
    d. enamel
  18. Tight collars of soft, but tough, CT surrounding and holding the teeth in place. recede in older persons. "long in the tooth". a. enamel b. dentin c. pulp cavity d. gingivae=gums
    d. gingivae=gums
  19. the intrinsic muscles of the tongue allow it to protrude, retract, etc. while the extrinsic muscles enable curling
    false
  20. these are mushroom-shaped structures scattered throughout the tongue. a. filiform papillae b. fungiform papillae c. foliate papillae d. circumvallate papillae
    b. fungiform papillae
  21. This is the upper part of the pharynx. connects nasal cavities with pharynx. a. nasopharynx b. oropharynx c. laryngopharynx
    a. nasopharynx
  22. the anterior and middle part of the pharynx. connects mouth with pharynx. a. nasopharynx b. oropharynx c. laryngopharynx
    b. oropharynx
  23. the tonsils are located in the anterior and middle part of the pharynx.
    true
  24. elastic cartilage flap located in the pharynx. acts as a lid over larynx when you swallow. a. nasopharynx b. epiglottis c. buccal d. esophagus
    b. epiglottis
  25. this is 6 - 10 inches long. holds 50 ml when empty, 1.5 liters starts to feel full, 4 liters when full. a. pharynx b. esophagus c. stomach d. liver
    c. stomach
  26. upper left part of the stomach. bulges naturally - superiorly and to the left. a. cardiac b. fundus c. gastric d. antrum e. pyloric
    b. fundus
  27. lower right of stomach, at pyloric sphincter. narrowest. a. cardiac b. fundus c. gastirc d. antrum e. pylorus
    e. pylorus
  28. In the duct of the gland. Secretes thin acidic mucus. a. mucous neck cells b. parietal cells c. chief cells d. enteroendocrine cells
    a. mucous neck cells
  29. spherical, with 3 prongs of dense microvilli, like fuzzy pitchforks. secrets HCl and intrinsic factor. a. mucous neck cells b. parietal cells c. chief cells d. enteroendocrine cells
    b. parietal cells
  30. intrinsic factor activates pepsin and physically breaks down large food particles into smaller ones
    false
  31. HCl breaks down large food particles into smaller ones
    true
  32. this is a local hormone that stimulates stomach secretion a. HCl b. Intrinsic Factor c. pepsin d. gastrin
    d. gastrin
  33. This is in the chief cells. It is used to digest proteins into polypeptides. a. HCl b. Intrinsic Factor c. Pepsin d. Gastrin
    c. Pepsin

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