1.

The structure(s) that open into the pharynx A. TracheaB. OesophagusC. EpiglottisD. Both A and B

Answer» Correct Answer - D
The oral cavity leads into a short pharynx which serves as a common passage for food and air.
The oesophagus and the trachea (wind pipe) open into the pharynx. A cartilaginous flap called epiglottis pre- vents the entry of food into the glottis-opening of the wind pipe-during swallowing.


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