In the center of the ethmoid bone, between the ethmoidal labyrinth, is the perpendicular plate, which forms the upper part of the bony nasal septum; the lower part of your nasal septum is formed ...

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 ...

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 ...