Agger nasi

Agger nasi
Lateral wall of nasal cavity; the three nasal conchæ have been removed.
Details
Identifiers
Latin	Agger nasi
TA	A06.1.02.021
FMA	59766
*Anatomical terms of bone* [edit on Wikidata]

The agger nasi (from agger meaning "mound or heap") is a small ridge on the lateral side of the nasal cavity. It is located midway at the anterior edge of the middle nasal concha, directly above the atrium of the middle meatus. It is formed by a mucous membrane that is covering the ethmoidal crest of the maxilla.

It is also called the nasoturbinal concha and the nasal ridge. An enlarged agger nasi cell may encroach the frontal recess area, constricting it and causing mechanical obstruction to frontal sinus drainage.

References

"Agger nasi", Stedman's Medical Dictionary, 27th ed. (2000). ISBN 0-683-40007-X

External links

The facial skeleton of the skull

Maxilla

Surfaces	Anterior: fossae (Incisive fossa, Canine fossa) Infraorbital foramen Anterior nasal spine Infratemporal: Alveolar canals Maxillary tuberosity Orbital: Infraorbital groove Infraorbital canal Nasal: Greater palatine canal

Processes	Zygomatic process Frontal process (Agger nasi, Anterior lacrimal crest) Alveolar process Palatine process (Incisive foramen, Incisive canals, Foramina of Scarpa, Incisive bone, Anterior nasal spine)

Other	Body of maxilla Maxillary sinus

Zygomatic

Palatine

Fossae	Pterygopalatine fossa Pterygoid fossa

Plates	Horizontal plate (Posterior nasal spine) Perpendicular plate (Greater palatine canal, Sphenopalatine foramen)

Processes	Pyramidal Orbital Sphenoidal

Mandible

Body	external surface (Mandibular symphysis, Lingual foramen, Mental protuberance, Mental foramen, Mandibular incisive canal) internal surface (Mental spine, Mylohyoid line, Sublingual fovea, Submandibular fovea) Alveolar part of mandible

Ramus	Mylohyoid groove (Mandibular canal, Lingula) Mandibular foramen Angle Coronoid process Mandibular notch Condyloid process Pterygoid fovea

Nose

Other

Lacrimal

Anatomy of the human nose

External nose

Nasal cavity

Openings	Nasal vestibule Nostril Posterior nasal apertures

Lateral wall	Nasal conchae: Supreme nasal concha Superior nasal concha Middle nasal concha Inferior nasal concha Nasal meatus: (Supreme superior middle inferior) Sphenoethmoidal recess Ethmoid bulla Agger nasi Ethmoidal infundibulum Semilunar hiatus Maxillary hiatus

Medial wall	Nasal septum Vomeronasal organ

Mucous membrane	Olfactory mucosa

Paranasal sinuses

Naso-pharynx

This article is issued from Wikipedia - version of the 2/8/2015. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.