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5 Written questions

5 Matching questions

  1. Functions of the Small Intestine
  2. G cells
  3. Lining of the Stomach
  4. Mucosa
  5. Mechanical processing
  1. a The inner lining of the digestive tract and consists of its own three layers: epithelium, lamina propria: loose CT, and muscularis mucosae: a thin smooth muscle layer.
  2. b Chewing, churning (mastication) and makes materials easier to propel along digestive tract.
  3. c Release the hormone Gastrin, which stimulates secretions by parietal and chief cells.
  4. d Plays a key role in digestion and absorption of nutrients, and 90% of nutrient absorption occurs here.
  5. e Simple columnar epithelium which invaginates to form gastric glands.

5 Multiple choice questions

  1. Movement of organic substances, ions, vitamins, and water for lumen, across the cells of epithelial lining, and into interstitial fluid (and blood vessels).
  2. Function is ingestion and to transport along the length of the tube, and lined with stratified epithelium for protection.
  3. Four major layers: from inside to outside: mucosa, submucosa, muscularis, and serosa.
  4. Secrete Pepsinogen, which is converted to pepsin (a protease enzyme) that breaks down proteins by gastric acid.
  5. Plicae, Vili, and Microvilli.

5 True/False questions

  1. Surface EpitheliumMovement of organic substances, ions, vitamins, and water for lumen, across the cells of epithelial lining, and into interstitial fluid (and blood vessels).

          

  2. Myenteric Nerve PlexusContains sensory neurons that sense muscle stretch, motor neurons (sympathetic and parasympathetic) that coordinate peristalsis, and innervates this muscular layer.

          

  3. Parietal cellsSecrete HCl (hydrochloric acid)- gastric acid.

          

  4. DigestionThe chemical breakdown of food into smaller fragments.

          

  5. DuodenumThe last segment of the small intestine, about 12 feet long, and ends at the Ileocecal valve: controls the flow from the small intestine into the large intestine.