Multiple choice

When the swallowing reflex is initiated in the body, which of the following events can be excluded?

  1. Velopharyngeal opening

  2. Closure of the larynx

  3. Contraction of the pharyngeal constrictor muscles

  4. Elevation of the larynx and hyoid bone towards the base of tongue

  5. Relaxation of the tonically contracted cricopharyngeus

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A Correct answer
Explanation

As the swallowing reflex is initiated, the velopharyngeal closes to prevent reflux of material into the posterior choana.