Agger nasi
Encyclopedia
The agger nasi 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.
Nasal cavity
The nasal cavity is a large air filled space above and behind the nose in the middle of the face.- Function :The nasal cavity conditions the air to be received by the other areas of the respiratory tract...
. It is located midway at the anterior edge of the middle nasal concha
Middle nasal concha
The medial surface of the labyrinth of ethmoid consists of a thin lamella, which descends from the under surface of the cribriform plate, and ends below in a free, convoluted margin, the middle nasal concha....
, directly above the atrium of the middle meatus. It is formed by a mucous membrane
Mucous membrane
The mucous membranes are linings of mostly endodermal origin, covered in epithelium, which are involved in absorption and secretion. They line cavities that are exposed to the external environment and internal organs...
that is covering the ethmoidal crest of the maxilla
Maxilla
The maxilla is a fusion of two bones along the palatal fissure that form the upper jaw. This is similar to the mandible , which is also a fusion of two halves at the mental symphysis. Sometimes The maxilla (plural: maxillae) is a fusion of two bones along the palatal fissure that form the upper...
.
It is also called the nasoturbinal concha and the nasal ridge.