Final answer:
An OT elicits a swallowing reflex by providing sensory input to the facial and glossopharyngeal nerves in the mouth using a tongue depressor.
Step-by-step explanation:
When working with an individual with a swallowing disorder, an OT elicits a swallowing reflex by providing sensory input to the facial and glossopharyngeal nerves located in the mouth. Sensory input can be provided using a tongue depressor to stimulate the lateral wall of the fauces, which should elicit the gag reflex.