Digestive System Functions Quiz
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Questions and Answers

What is the function of the stomach in the digestive process?

  • Mix food with gastric juices to form chyme (correct)
  • Absorb macro and micro nutrients
  • Breakdown food residue
  • Produce bile salts for digestion

    • Which organ is responsible for producing digestive enzymes and bicarbonate?

  • Small intestine
  • Liver
  • Gallbladder
  • Pancreas (correct)

    • Why is mucus important in the large intestine?

  • To propel and eliminate feces
  • To ease passage of feces through the colon (correct)
  • To absorb residual water and electrolytes
  • To break down food residue further

    • Which process involves primarily taking nutrients into the bloodstream in the small intestine?

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

    What controls the release of gastric acid in the digestive system?

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

    Which part of the mouth drops down from the soft palate to prevent food from entering the nasal cavity?

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

    What stimulates the release of pancreatic enzymes and bile?

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

    Which control mechanism reacts to stimuli outside the digestive tract, such as smell, sight, and taste of food?

    <p>Long reflex</p> Signup and view all the answers

    What is the primary function of lingual lipase in the mouth?

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

    What is the primary function of the small intestine?

    <p>Absorption of nutrients</p> Signup and view all the answers

    Which region of the small intestine contains the duodenal glands that secrete alkaline mucus?

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

    What is the primary mechanism by which chyme is moved through the small intestine?

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

    How long does it typically take for all food to leave the small intestine?

    <p>3-5 hours</p> Signup and view all the answers

    What is the role of the ileocecal sphincter in the digestive process?

    <p>It allows the passage of chyme from the ileum to the cecum.</p> Signup and view all the answers

    Which of the following is NOT a function of saliva?

    <p>Regulating the pH of the stomach</p> Signup and view all the answers

    Which of the following statements about the tongue is FALSE?

    <p>It is a single, undivided structure.</p> Signup and view all the answers

    Which of the following is NOT a type of permanent tooth in humans?

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

    What is the function of the epiglottis during swallowing?

    <p>It covers the larynx to prevent food from entering the trachea.</p> Signup and view all the answers

    What is the primary function of the premolars?

    <p>To mash and grind food</p> Signup and view all the answers

    Which part of the pharynx handles both food and air?

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

    Which of the following is NOT a function of the lower esophageal sphincter?

    <p>Initiates peristalsis in the esophagus</p> Signup and view all the answers

    Which phase of swallowing is voluntary and controlled by skeletal muscles?

    <p>Voluntary phase</p> Signup and view all the answers

    Which of the following statements about the stomach is FALSE?

    <p>Its size is directly proportional to body weight</p> Signup and view all the answers

    Which of the following cells in the gastric glands secrete the inactive form of the enzyme pepsin?

    <p>Chief cells</p> Signup and view all the answers

    Which part of the stomach connects to the duodenum of the small intestine?

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

    What is the primary function of the cephalic phase of gastric secretion?

    <p>Initiation of the digestive process in response to sensory stimuli</p> Signup and view all the answers

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