Instructions

what is the epiglottis?
a. a muscle the moves the esophagus into line with the pharynx during swallowing
b. amuscle that moves the trachea out line with the pharynx
c. a flap that flips down to cover the entry to the trachea during swallowing
d.a muscula sphinder that close off the entry to the trachea during swallowing

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