Phases of Digestion: Cephalic and Gastric Phase
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Questions and Answers

What stimulates centers in the cerebral cortex, hypothalamus, and brain stem during the cephalic phase of digestion?

  • Chemoreceptors monitoring chyme pH
  • Stretch receptors in the stomach
  • Increased motility in the stomach
  • Anticipation of food (correct)
  • What is responsible for making long chain fatty acids and monoglycerides more water-soluble?

  • Bile salts (correct)
  • Cholecystokinin
  • Secretin
  • Lacteals
  • How are short chain fatty acids able to pass through absorptive cells into the capillary of a villus?

  • Aggregating with phospholipids
  • By forming micelles
  • Via exocytosis
  • Via simple diffusion (correct)
  • What enhances the effects of each other in regulating gastric juice secretion and motility?

    <p>Cholecystokinin and secretin</p> Signup and view all the answers

    How do lipids get transported from the interior of the lumen to the brush border of absorptive cells for absorption?

    <p>Through bile salts forming micelles</p> Signup and view all the answers

    What happens to fatty acids and monoglycerides once they are in absorptive cells?

    <p>They form chylomicrons coated with cholesterol</p> Signup and view all the answers

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