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5 Written Questions

5 Matching Questions

  1. Pharynx
  2. Functions of the Digestive System
  3. The Impressive Lining of the Digest Tract
  4. Functions of the Stomach
  5. Parietal cells
  1. a The epithelial lining is continuous, at the mouth and at the anus, with the external environment, it must accommodate these transitions at either end while remaining moist, it must also be very thin to accomplish both digestion and absorption, and it must handle the rapid turnover of its epithelial cells due to mechanical and chemical insults while protecting the deeper tissues against: chemical stresses corrosive effects of digestive acids and enzymes), mechanical stresses, such as abrasion, and pathogenic bacteria.
  2. b Secrete HCl (hydrochloric acid)- gastric acid.
  3. c Ingestion, Mechanical processing, secretion, digestion, absorption, and excretion.
  4. d Storage of ingested food, sterilization of ingestive food, some digestion: mechanical breakdown of ingested food by churning; chemical breakdown of food material: by acids and enzymes, and some absorption of alcohol and aspirin.
  5. e A common passageway for solid food, liquids, and air that is shared by the digestive and respiratory systems, and food passes through this to the esophagus.

5 Multiple Choice Questions

  1. Folds in the intestinal lining, which increase surface area and are covered with villi.
  2. Duodenum, Jejunum, and Ileum.
  3. Two thick layers of smooth muscles- inner and outer longitudinal, and involved in peristalsis, which is wave-like muscular contractions that move materials along digestive tract, and contains a nerve plexus.
  4. Bordered by superiorly by the diaphragm, bordered inferiorly by the pelvic cavity, and lined by the peritoneum a serous membrane.
  5. Is either stratified or simple columnar.

5 True/False Questions

  1. Components of Digestive SystemOral cavity, teeth, tongue, esophagus, liver, gallbladder, large intestine, salivary glands, pharynx, stomach, pancreas, and small intestine. From the mouth to the anus.


  2. AbsorptionRemoval of waste products (feces) from body.


  3. SubmucosaThe 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.


  4. Functions of the Small IntestinePlays a key role in digestion and absorption of nutrients, and 90% of nutrient absorption occurs here.


  5. IngestionThe chemical breakdown of food into smaller fragments.


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