Final answer:
The nasopharynx is the region of the pharynx located posterior to the nasal cavity and superior to the soft palate.
Step-by-step explanation:
The region of the pharynx that is posterior to the nasal cavity and superior to the soft palate is called the nasopharynx. This most superior part of the pharynx is involved only in breathing and speech. The nasopharynx extends from the nasal and oral cavities superiorly to the esophagus and larynx anteriorly.
It is continuous with the oropharynx inferiorly, which is then followed by the laryngopharynx, completing the three subdivisions of the pharynx. The soft palate, which is composed mainly of skeletal muscle, acts as a partition between the nasopharynx and the oropharynx, playing a critical role in the process of breathing while chewing, yawning, swallowing, or singing.
The region of the pharynx that is posterior to the nasal cavity and superior to the soft palate is called the nasopharynx. The nasopharynx is involved only in breathing and speech. It is the most superior subdivision of the pharynx and is responsible for allowing air to flow into the bronchial tree.