Definition

1. Noun:
   • An anatomical space: The "nasal cavity" refers to one of two large, air-filled spaces located above the roof of the mouth (the palate) and below the base of the skull. They are separated by the nasal septum and are lined with mucous membrane.
   • A functional part of the respiratory system: It is the internal part of the nose, serving as the primary passageway for inhaled and exhaled air. It conditions the air (warming, moistening, and filtering) and houses the olfactory receptors for the sense of smell.

Usage Examples

• Noun:
  • Air is warmed and humidified as it passes through the nasal cavity.
  • Inflammation of the mucous membrane in the nasal cavity can cause congestion.
  • The olfactory nerves are located in the upper part of the nasal cavity.

Advanced Usage

• Medical/Anatomical Context: The term is primarily used in scientific, medical, and anatomical descriptions.
  • The surgeon examined the posterior region of the nasal cavity.
  • A deviated septum can obstruct one nasal cavity.

Variants and Related Words

• Nasal (adj): Pertaining to the nose.
  • Nasal congestion is common during a cold.
• Cavity (n): A hollow space within a body or object.
  • The thoracic cavity contains the heart and lungs.
• Paranasal sinuses (n): Air-filled spaces in the bones surrounding the nasal cavity.
  • The paranasal sinuses are connected to the nasal cavity.

Synonyms

• Nasal fossa (a less common anatomical term).
• Internal nose.

Related Phrases

• Nasal cavity proper: The main, central part of the cavity.
• Roof of the nasal cavity: The superior boundary, formed by parts of the skull.
• Floor of the nasal cavity: The inferior boundary, formed by the palate.

Noun

1. either of the two cavities lying between the floor of the cranium and the roof of the mouth and extending from the face to the pharynx