Sinus frontal — Wikipédia

Facial Fracture Management Handbook - Applied Anatomy

File:Chronische Sinusitis sphenoidalis links 56W - CT axial - 001

Superior sagittal sinus - Wikipedia

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File:Sinus frontalis pig.jpg - Wikimedia Commons

Prefrontal cortex - Wikipedia

Is the roof of the nasal cavity formed by parts of the frontal