Anatomy and Function of Esophagus and Stomach
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Questions and Answers

What is the main function of rippling peristalsis in the lower stomach?

  • Activating digestive enzymes
  • Mixing food well (correct)
  • Absorption of nutrients
  • Neutralizing stomach acid
  • How does the pylorus function in the stomach?

  • Absorbs nutrients
  • Secretes digestive enzymes
  • Stores bile
  • Meters out chyme into the small intestine (correct)
  • Which substances are primarily absorbed in the small intestine by active transport?

  • Most nutrients (correct)
  • Lipids
  • Water
  • End products of digestion
  • How are lipids primarily absorbed in the small intestine?

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

    What is the main function of the Large Intestine?

    <p>Elimination of indigestible food</p> Signup and view all the answers

    What do goblet cells in the large intestine produce?

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

    Which part of the large intestine sometimes becomes inflamed, leading to appendicitis?

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

    What is the major dietary source of cholesterol?

    <p>Egg yolk</p> Signup and view all the answers

    Where are the sublingual glands located?

    <p>Under the tongue</p> Signup and view all the answers

    Which proteins contain all essential amino acids?

    <p>Complete proteins from animal products</p> Signup and view all the answers

    What is the purpose of saliva in the digestive process?

    <p>To dissolve starches</p> Signup and view all the answers

    Where are most vitamins found in terms of food groups?

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

    Which of the following organs is NOT considered an accessory digestive organ?

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

    Which type of foods are most mineral-rich?

    <p>Vegetables and legumes</p> Signup and view all the answers

    During which type of metabolism are larger molecules built from smaller ones?

    <p><strong>Anabolism</strong></p> Signup and view all the answers

    What is the main function of the pharynx and esophagus?

    <p>Serving as passageways to the stomach</p> Signup and view all the answers

    During deglutition, where does the buccal phase occur?

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

    Which statement about peristalsis in the pharyngeal-esophageal phase is correct?

    <p>Peristalsis moves the bolus toward the stomach</p> Signup and view all the answers

    What is the function of the esophagus?

    <p>Conducts food by peristalsis</p> Signup and view all the answers

    What is the role of the tongue during deglutition?

    <p>Force the bolus into the pharynx</p> Signup and view all the answers

    Where does food enter the stomach?

    <p>Cardiac region</p> Signup and view all the answers

    What happens to the cardioesophageal sphincter during deglutition?

    <p>It opens when food presses against it</p> Signup and view all the answers

    What initiates the chemical breakdown of protein in the stomach?

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

    Which enzyme is responsible for breaking down starch into maltose in the mouth?

    <p>Salivary amylase</p> Signup and view all the answers

    Which organ branches off from the pharynx?

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

    What term describes the internal folds of the stomach mucosa?

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

    Which sphincter does food pass through to enter the small intestine from the stomach?

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

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