Small Intestine Functions and Divisions
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Questions and Answers

What is the function of the villi in the small intestine?

  • To absorb nutrients efficiently (correct)
  • To metabolize remaining nutrients
  • To lubricate the passage of feces
  • To produce digestive enzymes

    • What is the function of the microvilli in small intestine cells?

  • Produce digestive enzymes
  • Lubricate the passage of feces in the large intestine
  • Bear enzymes for breaking down double sugars and completing protein digestion (correct)
  • Metabolize remaining nutrients

    • What is the function of the pancreas in digestion?

  • To produce digestive enzymes
  • To absorb nutrients efficiently
  • Responsible for starch digestion, half of protein digestion, almost total fat digestion, and nucleic acid digestion (correct)
  • To metabolize remaining nutrients

    • What is the function of the colon in the digestive system?

    <p>A holding area for stool and releases it through the anus when full</p> Signup and view all the answers

    What is the role of resident bacteria (microbiota) in the large intestine?

    <p>Metabolize remaining nutrients and release gases causing flatulence</p> Signup and view all the answers

    Where does the small intestine connect to the large intestine?

    <p>At the ileocecal valve</p> Signup and view all the answers

    What is the average length of the small intestine?

    <p>2 to 4 meters</p> Signup and view all the answers

    Which structure in the small intestine increases the absorptive surface area?

    <p>Plicae circulares</p> Signup and view all the answers

    What accelerates during the journey through the small intestine's looping coils?

    <p>Chemical digestion</p> Signup and view all the answers

    Which part of the small intestine prevents it from being overwhelmed by chyme from the stomach?

    <p>Pyloric sphincter</p> Signup and view all the answers

    What is the role of the circular folds in the small intestine?

    <p>To form an internal 'corkscrew slide' to increase surface area</p> Signup and view all the answers

    Which structure prevents the small intestine from being overwhelmed by chyme from the stomach?

    <p>Pyloric sphincter</p> Signup and view all the answers

    Where does digestion mostly occur in the small intestine?

    <p>Duodenum</p> Signup and view all the answers

    What is the function of the ileocecal valve?

    <p>To connect the small intestine to the large intestine</p> Signup and view all the answers

    What is the average length of the small intestine?

    <p>2 to 4 meters</p> Signup and view all the answers

    What is the function of the lacteal in each villus of the small intestine?

    <p>Absorbing nutrients into the capillaries</p> Signup and view all the answers

    What is the main function of the large intestine in the digestive system?

    <p>Metabolizing remaining nutrients and releasing gases</p> Signup and view all the answers

    What is the role of the brush border enzymes in the small intestine?

    <p>Aiding in the digestion of fats and nucleic acids</p> Signup and view all the answers

    What is the function of the pancreas in digestion?

    <p>Delivering enzymes and bicarbonate ions for digesting major nutrient groups</p> Signup and view all the answers

    What is the function of goblet cells in the mucosa of the large intestine?

    <p>Producing alkaline mucus to lubricate the passage of feces</p> Signup and view all the answers

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