Definition

Noun 1. Either one of the two posterior openings at the back of the nasal cavity leading to the nasopharynx: A posterior naris is one of the two internal openings that connect the nasal cavity to the upper part of the throat (the nasopharynx). They are located at the rear of the nasal cavity, as opposed to the external nostrils (anterior nares).

Usage

The term "posterior naris" is a specific anatomical term. It is used in medical, biological, and scientific contexts to describe human or animal anatomy. - It is typically used in the singular to refer to one of the two openings. - The plural form is "posterior nares."

Examples

• Noun:
  • During the examination, the doctor noted that both posterior nares were clear.
  • Air flows from the nasal cavity through the posterior naris into the nasopharynx.
  • The endoscopic camera provided a clear view of the left posterior naris.

Advanced Usage

• Clinical Context: The term is frequently used in otolaryngology (ENT medicine), surgery reports, and anatomical descriptions.
  • The obstruction was found just anterior to the posterior naris.
• Comparative Anatomy: Used when describing the respiratory anatomy of various vertebrates.
  • In mammals, the posterior nares open into the nasopharynx.

Variants and Related Words

• Choana (plural: choanae): This is the direct synonym and more technical term for "posterior naris." It is commonly used in formal anatomical nomenclature.
  • The choanae are the openings between the nasal cavity and the nasopharynx.
• Internal naris: Another synonymous term, emphasizing the internal location as opposed to the external nostril.
• Anterior naris (plural: anterior nares): The external opening of the nose; the nostril. This is the contrasting term.
• Naris (plural: nares): The general term for an opening of the nose. "Posterior naris" specifies which opening.

Synonyms

• Choana
• Internal naris
• Posterior nasal aperture

Notes on Meaning

The word "posterior naris" has a single, precise anatomical meaning. It does not have idiomatic or figurative uses. It is a compound noun where "posterior" specifies the location (back) and "naris" specifies the structure (nasal opening).

Noun

1. either one of the two posterior openings at the back of the nasal cavity leading to the nasopharynx