Functions of Saliva
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Questions and Answers

How does saliva contribute to cleaning the mouth?

  • Dissolves solid food to stimulate taste buds
  • Hydrolyses cooked starch into maltose
  • Protects mucosa membrane from hot, cold, acid, and alkaline food
  • Prevents multiplication of microorganisms by washing off residue (correct)
  • What is the function of saliva in relation to the mechanical aspect?

  • Facilitates absorption of nutrients in the mouth
  • Moistens the mouth and helps with articulation and speech (correct)
  • Prevents tarter formation
  • Aids in digestion by breaking down proteins
  • Which component of saliva contributes to its antibacterial function?

  • Longitudinal inner layer
  • Mercury and lead
  • Iodides
  • K thiocyanate, lysozymes, and immunoglobulin A (correct)
  • What role does saliva play in regulating body temperature in panting animals like dogs?

    <p>It evaporates in hot atmospheres to regulate body temperature</p> Signup and view all the answers

    What is the function of the pharynx in relation to food movement?

    <p>Serves as a passageway for air and food, with food being propelled to the esophagus by muscle contractions</p> Signup and view all the answers

    Which phase of deglutition involves the elevation of the larynx to close the glottis by the epiglottis?

    <p>Pharyngeal stage</p> Signup and view all the answers

    During which phase of deglutition does the tongue elevate upward and backward to push the bolus from the mouth to the pharynx?

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

    What is the main function of the soft palate during deglutition?

    <p>Closing posterior nasal opening</p> Signup and view all the answers

    Which phase of deglutition involves many protective reflexes to protect the respiratory system and direct food to the esophagus?

    <p>Pharyngeal stage</p> Signup and view all the answers

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