Nasopharynx

The nasopharynx (nasal part of the pharynx) is the uppermost part of the pharynx. It extends from the base of the skull to the upper surface of the soft palate; it differs from the oral and laryngeal parts of the pharynx in that its cavity always remains patent (open).

Read more about Nasopharynx:  Anterior, Lateral, Posterior, Additional Images