<P> The upper portion of the pharynx , the nasopharynx , extends from the base of the skull to the upper surface of the soft palate . It includes the space between the internal nares and the soft palate and lies above the oral cavity . The adenoids , also known as the pharyngeal tonsils , are lymphoid tissue structures located in the posterior wall of the nasopharynx . Waldeyer 's tonsillar ring is an annular arrangement of lymphoid tissue in both the nasopharynx and oropharynx . </P>
<P> The upper portion of the pharynx , the nasopharynx , extends from the base of the skull to the upper surface of the soft palate . It includes the space between the internal nares and the soft palate and lies above the oral cavity . The adenoids , also known as the pharyngeal tonsils , are lymphoid tissue structures located in the posterior wall of the nasopharynx . Waldeyer 's tonsillar ring is an annular arrangement of lymphoid tissue in both the nasopharynx and oropharynx . </P>
which part of the pharynx lies behind the nasal cavity
which part of the pharynx lies behind the nasal cavity
nasopharynx
nasopharynx