ala and alar groove

ala and alar groove
   An ala is a winglike structure or part in anatomy, such as the external ear. It more commonly refers to the ala of the nose: that membrane to the outside of each nostril. The alar groove is a C-shaped edge formed at the joining of the ala to the cheek. Also see bust, philtrum, portrait, self-portrait, and septum.

Glossary of Art Terms. 2014.

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