Answers. Best Answer: FL means Flight Level. It's used above 18.000ft (in the US, in other countries other altitudes are used as the boundary) to indicate the altitude in hundreds of feet. So FL230 is 23.000ft standard altitude.est Answer: FL means Flight Level. It's used above 18.000ft (in the US, in other countries other altitudes are used as the boundary) to indicate the altitude in hundreds of feet.
The nostrils, which form the external entrance of the nose, lead into the two nasal cavities, which are separated from each other by the nasal septum, a partition formed of cartilage and bone. Three bony ridges project from the outer wall of each nasal cavity and partially divide the cavity into three air passages.
An imaginary line between the most lateral points of the external inferior attachments of the alae nasi to the face. Nasal Tip: The junction of the inferior margin of the nasal ridge and the columella. Commonly, it is the part of the nose furthest from the plane of the face.In rare circumstances, such as markedly prominent and convex nasal profiles, other parts of the ridge may be further removed from the facial plane.Ala:he normal anatomy of the nose is shown in Figures 1-3: the various terms used for nasal structures and dimensions (Fig. 1), the cartilaginous components of the nose and terms for regions (Fig. 2), and in Figure 3 the cross section is shown. Figure 1.