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5 Written questions

5 Matching questions

  1. Functions of the Digestive System
  2. Villi
  3. Functions of the Stomach
  4. Functions of the Oral Cavity
  5. Chief cells
  1. a 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.
  2. b Fingerlike projections, which increase surface area.
  3. c Secrete Pepsinogen, which is converted to pepsin (a protease enzyme) that breaks down proteins by gastric acid.
  4. d Mechanical processing: Through actions of teeth and tongue, lubrication: mixing with salivary gland secretions, and some digestion: saliva contains amylase (enzyme that breaks down starches), and lipase (enzyme that breaks down lipids).
  5. e Ingestion, Mechanical processing, secretion, digestion, absorption, and excretion.

5 Multiple choice questions

  1. A hollow muscular tube, transports solid food and liquids to the stomach, and passes through the diaphragm muscle to get from the larynx to the abdomen.
  2. The 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.
  3. Function is ingestion and to transport along the length of the tube, and lined with stratified epithelium for protection.
  4. G cells and Stem cells.
  5. 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.

5 True/False questions

  1. MucosaDeep to the mucosa, dense irregular connective tissue, and contains large blood vessels, large lymphatic vessels, and large nerves.


  2. Lamina PropriaDeep to the epithelial layer, loose connective tissue, and contains small blood vessels, small lymphatic vessels and lymphoid tissue, and small sensory and motor nerves.


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


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


  5. 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.


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