Swallowing (Deglutition) Process Overview
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Questions and Answers

What initiates the oral (voluntary) phase of swallowing?

  • Closing of the nasal cavity
  • Closure of the larynx
  • Elevation of the soft palate
  • Squeezing and rolling back of food by the tongue (correct)

    • During which phase of swallowing does the soft palate close the nasal cavity?

  • Esophageal phase
  • Post-esophageal phase
  • Pharyngeal phase (correct)
  • Oral (voluntary) phase

    • What prevents the passage of food to the respiratory tract during swallowing?

  • Contraction of pharyngeal muscles
  • Elevation of the larynx
  • Approximation of vocal cords (correct)
  • Relaxation of the upper esophageal sphincter

    • Which phase of swallowing involves peristalsis and propulsion of food bolus towards the upper part of the esophagus?

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

    What occurs during swallowing apnea?

    <p>Inhibition of the respiratory center</p> Signup and view all the answers

    If primary peristalsis fails to clear all food from the esophagus, what follows?

    <p>'Second wave' peristalsis</p> Signup and view all the answers

    'Swallowing apnea' is a result of:

    <p>'Inhibition' by swallowing center</p> Signup and view all the answers

    What triggers the elevation and closure of the larynx during swallowing?

    <p>'Involuntary' pharyngeal phase</p> Signup and view all the answers

    In which phase does the larynx close against the epiglottis to prevent food entering the respiratory tract?

    <p>'Pharyngeal' phase</p> Signup and view all the answers

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