The function of the paranasal sinuses is not clear, but theories include humidification and warming of inspired air, lightening of the skull, improvement of vocal resonance, absorption of shock to the ...
The anterior ethmoidal artery (AEA) plays a critical role in the vascular supply to the anterior cranial fossa and the paranasal sinuses. Its course through the ethmoidal labyrinth is marked by ...
This X-ray of a human skull highlights the main nasal cavity (orange) and the sinuses: frontal (pink), ethmoid (yellow), maxillary (green) and sphenoid (purple). Asian apes do not have frontal or ...
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