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major alar cartilage of nose


Definition: paired cartilages that support the nasal tip, columella, and nostril rims, each consisting of a medial crus within the columella; a middle crus, which extends from the columella's lobular junction (medial genu) to the lateral edge of the tip lobule (lateral genu); and a lateral crus that extends toward the pyriform aperture. The axis of the lateral crus normally extends along the line that runs toward the lateral orbital canthus.

Synonym(s): cartilago alaris major nasiTA, greater alar cartilage

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© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.