vena ethmoidalis

[Tina]

veins that drain the ethmoidal sinuses and empty into the superior ophthalmic vein

[Tayyaba]

The vena ethmoidalis, also known as the ethmoidal vein, refers to either of the two veins, anterior and posterior ethmoidal veins, that drain the ethmoidal sinus in the nose. These veins also receive blood from the frontal sinus and are part of the orbital venous system. The anterior ethmoidal vein empties usually into the ophthalmic vein, while the posterior ethmoidal vein drains usually into the superior ophthalmic vein.