Definition

Noun: - Anatomical passage in the nasal cavity: A "nasal meatus" is any of the three main air passages (superior, middle, and inferior) in the nasal cavity, formed by the bony projections of the nasal conchae (turbinates). These channels serve to direct and condition the flow of inhaled air.

Usage

The term "nasal meatus" is a specific anatomical term used in medical, biological, and health sciences contexts. It is typically modified by an adjective (superior, middle, inferior) to specify which passage is being discussed. - The inferior nasal meatus is the largest of the three passages. - Inflammation can block a nasal meatus, making breathing difficult.

Advanced Usage

• Clinical context: Used to describe the site of conditions, procedures, or drainage.
  • The polyps were obstructing the middle nasal meatus.
  • Sinus drainage occurs primarily through the middle meatus.

Variants and Related Words

• Meatus (noun): A general term for a natural body passage or opening.
  • The acoustic meatus is the ear canal.
• Nasal concha / Turbinate (noun): The bony shelves that create the boundaries of the nasal meatuses.

Synonyms

• Nasal passage: A more general, non-technical term for an airway within the nose.
• Nasal channel: Similar to "nasal passage," emphasizing the function as a conduit for air.

Related Phrases

• Meatal obstruction: Blockage of a meatus.
  • The patient was diagnosed with meatal obstruction.
• Ostiomeatal complex: A specific functional unit where sinus openings drain into the middle nasal meatus.
  • Disease in the ostiomeatal complex is a common cause of sinusitis.

Noun

1. the passages in the nasal cavity formed by the projections of the nasal conchae