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The sphenoid sinus
Last reviewed: 19.11.2021
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The sphenoid sinus (sinus sphenoidalis) is located in the body of the sphenoid bone. The lower wall of the sinus is involved in the formation of the wall of the nasal cavity. To the upper part of the lateral wall is a cavernous sinus. The sphenoid sinus is usually subdivided into two asymmetric parts by a sagittal septum. Sometimes the septum is absent. The sphenoid sinus communicates with the superior nasal passage.
The airway cavities communicating with the nasal cavity are the front, middle and posterior cells of the latticed bone.
