Greater alar cartilage

Greater alar cartilage

Infobox Anatomy
Name = PAGENAME
Latin = cartilago alaris major
GraySubject = 223
GrayPage = 993


Caption = Cartilages of the nose. Side view. (Greater alar cartilage visible in blue at center right.)


Caption2 = Cartilages of the nose, seen from below.
System =
Precursor =
MeshName =
MeshNumber =
DorlandsPre = c_12
DorlandsSuf = 12217056
The greater alar cartilage (lower lateral cartilage) is a thin, flexible plate, situated immediately below the preceding, and bent upon itself in such a manner as to form the medial wall and lateral wall of the naris of its own side.

The portion which forms the medial wall (crus mediale) is loosely connected with the corresponding portion of the opposite cartilage, the two forming, together with the thickened integument and subjacent tissue, the septum mobile nasi.

The part which forms the lateral wall (crus laterale) is curved to correspond with the ala of the nose; it is oval and flattened, narrow behind, where it is connected with the frontal process of the maxilla by a tough fibrous membrane, in which are found three or four small cartilaginous plates, the lesser alar cartilages (cartilagines alares minores; sesamoid cartilages).

Above, it is connected by fibrous tissue to the lateral cartilage and front part of the cartilage of the septum; below, it falls short of the margin of the naris, the ala being completed by fatty and fibrous tissue covered by skin.

In front, the greater alar cartilages are separated by a notch which corresponds with the apex of the nose.

External links

* [http://www.bcm.edu/oto/studs/anat/nose.html Diagram at bcm.edu]


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