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Erschienen in: Surgical and Radiologic Anatomy 10/2016

03.05.2016 | Anatomic Bases of Medical, Radiological and Surgical Techniques

The olfactory fascia: an evo–devo concept of the fibrocartilaginous nose

verfasst von: Roger Jankowski, Cécile Rumeau, Théophile de Saint Hilaire, Romain Tonnelet, Duc Trung Nguyen, Patrice Gallet, Manuela Perez

Erschienen in: Surgical and Radiologic Anatomy | Ausgabe 10/2016

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Abstract

Purpose

Evo–devo is the science that studies the link between evolution of species and embryological development. This concept helps to understand the complex anatomy of the human nose. The evo–devo theory suggests the persistence in the adult of an anatomical entity, the olfactory fascia, that unites the cartilages of the nose to the olfactory mucosa.

Methods

We dissected two fresh specimens. After resecting the superficial tissues of the nose, dissection was focused on the disarticulation of the fibrocartilaginous noses from the facial and skull base skeleton.

Results

Dissection shows two fibrocartilaginous sacs that were invaginated side-by-side in the midface and attached to the anterior skull base. These membranous sacs were separated in the midline by the perpendicular plate of the ethmoid. Their walls contained the alar cartilages and the lateral expansions of the septolateral cartilage, which we had to separate from the septal cartilage. The olfactory mucosa was located inside their cranial ends.

Conclusion

The olfactory fascia is a continuous membrane uniting the nasal cartilages to the olfactory mucosa. Its origin can be found in the invagination and differentiation processes of the olfactory placodes. The fibrous portions of the olfactory fascia may be described as ligaments that unit the different components of the olfactory fascia one to the other and the fibrocartilaginous nose to the facial and skull base skeleton. The basicranial ligaments, fixing the fibrocartilaginous nose to the skull base, represent key elements in the concept of septorhinoplasty by disarticulation.
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Metadaten
Titel
The olfactory fascia: an evo–devo concept of the fibrocartilaginous nose
verfasst von
Roger Jankowski
Cécile Rumeau
Théophile de Saint Hilaire
Romain Tonnelet
Duc Trung Nguyen
Patrice Gallet
Manuela Perez
Publikationsdatum
03.05.2016
Verlag
Springer Paris
Erschienen in
Surgical and Radiologic Anatomy / Ausgabe 10/2016
Print ISSN: 0930-1038
Elektronische ISSN: 1279-8517
DOI
https://doi.org/10.1007/s00276-016-1677-y

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