Ethmoidal infundibulum

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Ethmoidal infundibulum
Lateral wall of nasal cavity; the three nasal conchæ have been removed. (Infundibulum labeled at center top.)
Latin infundibulum ethmoidale
Gray's p.995
Anatomical terminology

The hiatus semilunaris is bounded inferiorly by the sharp concave margin of the uncinate process of the ethmoid bone, and leads into a curved channel, the infundibulum, bounded above by the bulla ethmoidalis and below by the lateral surface of the uncinate process of the ethmoid.

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This article incorporates text from a public domain edition of Gray's Anatomy.