Which of the following portions of the pharynx is a passage for air only (not food) ?

A) Oropharynx
B) Sinopharynx
C) Nasopharynx
D) Laryngopharynx
E) None of the portions of the pharynx is a passageway for only air; all portions transport both air and food.

Nasopharynx

The upper part of the pharynx, connecting the nasal cavity above the soft palate.

Oropharynx

Part of the pharynx located between the soft palate and the upper edge of the epiglottis, involved in swallowing and speech.

Laryngopharynx

The lower part of the pharynx located behind the larynx, serving as a passageway for both food to the esophagus and air to the larynx.