Ethmoid bulla
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| Ethmoid bulla | |
|---|---|
| Lateral wall of nasal cavity; the three nasal conchæ have been removed. (Bulla ethmoidalis is labeled at center top.) | |
| Latin | bulla ethmoidalis |
| Gray's | subject #223 995 |
On the lateral wall of the middle meatus is a curved fissure, the hiatus semilunaris, limited below by the edge of the uncinate process of the ethmoid and above by an elevation named the ethmoid bulla (or ethmoidal bulla); the middle ethmoidal cells are contained within this bulla and open on or near to it.
The bulla ethmoidalis is caused by the bulging of the middle ethmoidal cells which open on or immediately above it, and the size of the bulla varies with that of its contained cells.
External links [edit]
- SUNY Labs 22:os-1115
- Wright ED, Bolger WE (2001). "The bulla ethmoidalis: [[lamella (zoology)|lamella]] or a true cell?". J Otolaryngol 30 (3): 162–6. doi:10.2310/7070.2001.20206. PMID 11771046. Wikilink embedded in URL title (help)
This article incorporates text from a public domain edition of Gray's Anatomy.
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