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5 Written questions

5 Matching questions

  1. Mucosa
  2. Mucous cells
  3. Functions of the Stomach
  4. Lamina Propria
  5. G cells
  1. a Secrete mucus for protection.
  2. b 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.
  3. c Release the hormone Gastrin, which stimulates secretions by parietal and chief cells.
  4. d Deep to the epithelial layer, loose connective tissue, and contains small blood vessels, small lymphatic vessels and lymphoid tissue, and small sensory and motor nerves.
  5. e 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 Multiple choice questions

  1. Columnar epithelial cell lining the villi contain this, which increase surface area.
  2. Ingestion, Mechanical processing, secretion, digestion, absorption, and excretion.
  3. 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.
  4. Removal of waste products (feces) from body.
  5. The chemical breakdown of food into smaller fragments.

5 True/False questions

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


  2. Mechanical processingChewing, churning (mastication) and makes materials easier to propel along digestive tract.


  3. Epithelial Cells of Gastric Glands- Endocrine cellsMucous cells, Parietal cells, and Chief cells.


  4. PharynxA 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. VilliFingerlike projections, which increase surface area.