In the swallowing reflex the soft palate, larynx, and hyoid bone are raised. the epiglottis closes off the top of the trachea. the tongue presses against the uvula and soft palate. muscles pull the pharynx upward toward the food. all of the above are true.

all of the above are true.

Explanation:

The phase of swallowing that occurs involuntarily is termed as swallowing reflex. The swallowing reflex occurs after mastication when the bolus has been formed and the food has to be swallowed in.This reflex begins when the tongue is raised and presses against the uvula and the soft palate.Following this, the epiglottis closes the top of the trachea to avoid the food to enter into the air passage and soft palate, larynx and hyoid bones get raised,Finally, the muscles pull the pharynx upward towards the food and the food gets swallowed.