Corpus: Anterior ethmoidal artery

The anterior ethmoidal artery is a branch of the ophthalmic artery. It travels through the anterior ethmoidal foramen, moving from the orbit into the cranial cavity.

See also: Posterior ethmoidal artery

The anterior ethmoidal artery travels alongside the anterior ethmoidal nerve and supplies blood to the anterior and middle ethmoidal air cells. Once it re-enters the cranial cavity, it branches into the anterior meningeal artery, which supplies the dura mater. Its nasal branches pass through a slit on the side of the crista galli into the nasal cavity, where they supply the nasal mucosa of the nasal septum and the lateral wall of the nasal cavity. A terminal branch extends to the bridge of the nose.