Nasopharynx

Definition

The nasopharynx is the upper part of the pharynx, located behind the nose and above the soft palate. It plays a role in respiratory function by serving as a passageway for air during breathing.

5 Must Know Facts For Your Next Test

1. The nasopharynx connects the nasal cavity to the oropharynx, facilitating airflow.
2. It houses the pharyngeal tonsils (adenoids), which are part of the immune system.
3. The Eustachian tubes open into the nasopharynx, helping to equalize pressure between the middle ear and the atmosphere.
4. It is lined with ciliated epithelium that helps filter and humidify inhaled air.
5. Pathogens entering through the nasopharynx can impact respiratory health and potentially lead to infections like sinusitis.

Review Questions

• What anatomical structures are housed within the nasopharynx?
• How does the nasopharynx contribute to respiratory function?
• Why is it important for nurses to understand diseases that affect the nasopharynx?

Related terms

Pharyngeal Tonsils: Lymphoid tissue located in the nasopharynx that helps protect against pathogens

Eustachian Tubes: Tubes that connect the middle ear to the nasopharynx, aiding in pressure regulation

Ciliated Epithelium: Type of tissue lining parts of the respiratory tract, including the nasopharynx, aiding in filtering inhaled air