Biology

Thalia Pitts

9 June, 10:31

During swallowing,

A) The tongue flattens to the bottom of the mouth.

B) Smooth muscle in the esophagus contracts slightly.

C) Salivary secretions stop. the hard palate rises to close the nasal passages.

D) the epiglottis bends to close the trachea.

+4

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