The Arteria Ethmoidalis or ethmoid artery, is a small branch of the ophthalmic artery which runs along the roof of the nasal cavity. It supplies the ethmoidal cells and the frontal and nasal sinuses. A couple of synonyms for Arteria Ethmoidalis are ethmoidal artery and internal ethmoidal artery. It is an essential artery in the nasal region, as it provides oxygenated blood to the nasal mucosa, which lines the nasal cavities and helps filter the air we breathe. Understanding the synonyms for this important artery can aid in effective communication between medical professionals and facilitate a better understanding of medical procedures in the nasal region.