Agger nasi

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Bone: Agger nasi

Lateral wall of nasal cavity; the three nasal conchæ have been removed.
Gray's	subject #38 161

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.

References

"Agger nasi." Stedman's Medical Dictionary, 27th ed. (2000). ISBN 0-683-40007-X - Stedman's/LWW 1487156

External links

Bones of head and neck: the facial skeleton of the skull (TA A02.1.08–15, GA 2.156–177)

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

Orbital process (Zygomatico-orbital) · Temporal process (Zygomaticotemporal) · Lateral process (Zygomaticofacial)

Palatine

Fossae	Pterygopalatine fossa · Pterygoid fossa

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

Processes	Orbital · Sphenoidal

Mandible

Body	external surface (Symphysis menti, 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

Minor/
nose

Nasal bone: Internasal suture · Nasal foramina

Inferior nasal concha: Ethmoidal process · Maxillary process

Vomer: Vomer anterior · Synostosis vomerina · Vomer posterior (Wing)

Lacrimal: Posterior lacrimal crest · Lacrimal groove · Lacrimal hamulus

M: BON/CAR

anat(c/f/k/f, u, t/p, l)/phys/devp/cell

noco/cong/tumr, sysi/epon, injr

proc, drug(M5)

Head and neck, upper RT: Nose (TA A06.1, TH H3.05.01, GA 10.992)

External nose

Ala of nose

nasal cartilages (of the septum, Greater alar, Lesser alar, Lateral nasal, Accessory nasal, Vomeronasal)

Nasal cavity

Openings	Nasal vestibule · Nostril · Posterior nasal apertures

Lateral wall	Nasal concha/meati: Superior nasal concha · Middle nasal concha · Inferior nasal concha · Superior nasal meatus · Middle nasal meatus · Inferior nasal meatus Sphenoethmoidal recess · Ethmoid bulla · Agger nasi · Ethmoidal infundibulum · Semilunar hiatus · Maxillary hiatus

Medial wall	Nasal septum · Vomeronasal organ

Mucous membrane	Olfactory mucosa

Paranasal sinuses

Maxillary sinus · Sphenoidal sinuses · Frontal sinus · Ethmoid sinus

Naso-pharynx

Pharyngeal opening of auditory tube (Salpingopharyngeal fold, Salpingopalatine fold, Torus tubarius) · Pharyngeal tonsil · Pharyngeal recess

M: RES

anat(n, x, l, c)/phys/devp

noco(c, p)/cong/tumr, sysi/epon, injr

proc, drug(R1/2/3/5/6/7)

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