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What is the ala of the nose?

Published in Nasal Anatomy 2 mins read

The ala of the nose is the tissue that forms the outer, curved part of each nostril.

Understanding the Ala

The ala plays a crucial role in defining the shape and structure of the nose. Specifically, the ala is:

  • Located laterally: It forms the sides of the nose around each nostril.
  • Inferior Boundary: It is positioned at the lower edge of the nose, surrounding the opening of the nostril (naris).
  • Tissue Structure: It is made up of flexible tissue which allows for movement and breathing.

Here's a table summarizing the key features:

Feature Description
Location Lateral boundary of the nose, inferiorly.
Function Forms the outer walls of the nostrils (nares).
Composition Composed of tissue
Relationship to naris The tissue surrounding the opening of the nostril (naris)

How does the Ala relate to other parts of the nose?

The ala is not to be confused with other parts of the nose. For example:

  • Columella: The columella is the tissue that connects the nasal tip to the nasal base. It lies between the two nostrils, separating the nares, whereas the ala forms the outer boundary of each nostril.

Visualizing the Ala

Imagine the nose as a structure: the ala forms the curved "wings" on either side of the lower part of the nose, defining the openings of each nostril. The ala is the tissue you'd feel when touching the outer side of the nostril.