Formation of the Paranasal Air Sinuses

  • Roger Jankowski


Some of the reasons why the ethmoid labyrinths should not be considered sinuses of the ethmoid bone have been discussed earlier (see  Chap. 10). According to this concept, humans have only three pairs of paranasal air sinuses: the maxillary, frontal, and sphenoid sinuses. More arguments supporting that paranasal air sinuses are structures different from the ethmoid complex, and that they have a different origin, are presented here. The paranasal air sinus is a specific entity.


Nasal Cavity Paranasal Sinus Sphenoid Sinus Frontal Sinus Olfactory Organ 
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Copyright information

© Springer-Verlag France 2013

Authors and Affiliations

  • Roger Jankowski
    • 1
  1. 1.Faculté de Médecine Service ORL - CHUUniversité de LorraineNancyFrance

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