Digestive System Overview Quiz
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Questions and Answers

Which organ is not part of the alimentary canal?

  • Liver (correct)
  • Stomach
  • Esophagus
  • Small intestine
  • What is the function of the third (oblique) layer of smooth muscle in the stomach?

  • To break down food mechanically
  • To aid in absorption
  • To allow the stomach to churn and mix food (correct)
  • To secrete digestive enzymes
  • Which process involves the transport of products of digestion through the intestinal mucosa into the blood?

  • Propulsion
  • Ingestion
  • Mechanical breakdown
  • Absorption (correct)
  • What is the major region of the stomach that lies in the upper left quadrant of the abdomen?

    <p>Fundus (C)</p> Signup and view all the answers

    Which organ is responsible for the secretion of digestive enzymes and bicarbonate into the small intestine?

    <p>Pancreas (B)</p> Signup and view all the answers

    What term refers to the elimination of undigested residues (feces) from the body?

    <p>Defecation (D)</p> Signup and view all the answers

    What type of cells produce mucus in the stomach?

    <p>Mucous neck cells (B)</p> Signup and view all the answers

    Which cells secrete hydrochloric acid and intrinsic factor in the stomach?

    <p>Parietal cells (B)</p> Signup and view all the answers

    What is the function of chief cells in the stomach?

    <p>Produce pepsinogen (B)</p> Signup and view all the answers

    Which phase of gastric secretion is stimulated by food-related stimuli acting on the head and stomach?

    <p>Cephalic phase (C)</p> Signup and view all the answers

    What inhibits gastric secretory activity when acting on the small intestine?

    <p>Cholecystokinin (CCK) (B)</p> Signup and view all the answers

    Which organ is responsible for the release of bile and pancreatic secretions into the duodenum?

    <p>Pancreas (B)</p> Signup and view all the answers

    What structures increase the intestinal surface area for digestion and absorption?

    <p>Villi and microvilli (B)</p> Signup and view all the answers

    Which organ releases its secretion into the duodenum through the hepatopancreatic sphincter?

    <p>Pancreas (B)</p> Signup and view all the answers

    What is responsible for setting the maximal rate of peristalsis in the stomach?

    <p>Pacemaker cells in the smooth muscle sheet (A)</p> Signup and view all the answers

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