Choanae - choana, funnel⏎
Ala (alar) - ala, wing.⏎
Azygos - azygos, unyoked (not a pair) named for its asymmetry.⏎
Atlas - Atlas, mythical figure; Atlas supports the world on his shoulders.⏎
Arytenoid - arytaina, pitcher; the two cartilages, with the gap between them, look like the spout of a pitcher.⏎