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Infraorbital Artery
Cardiovascular System

Infraorbital Artery

Arteria infraorbitalis

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Quick Facts

Origin: Maxillary artery.

Course: Exits the orbit via the infraorbital canal and then emerges onto the face through the infraorbital foramen.

Branches: Anterior and middle superior alveolar arteries.

Supplied Structures: Maxilla and its sinus, maxillary dental arcade, inferior eyelid, cheek, and nose.

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Origin

The infraorbital artery arises from the third part of the maxillary artery as it passes through the pterygopalatine fossa. Sometimes, it may share a common trunk with the posterior superior alveolar artery.

Course

The infraorbital artery ascends to the orbit of the eye, entering it through the inferior orbital fissure. The infraorbital artery exits the orbit via the infraorbital canal of the maxillary bone. It emerges onto the face through the infraorbital foramen.

Branches

Within the infraorbital canal, the infraorbital artery gives rise to the anterior and middle superior alveolar arteries.

Supplied Structures

The infraorbital artery supplies numerous structures. The anterior and middle superior alveolar arteries supply the teeth of the upper jaw and the maxillary sinus, while the terminal ramifications of the infraorbital artery supply the skin of the inferior eyelid, cheek, and nose.

Learn more about this topic from other Elsevier products

Infraorbital Artery

ScienceDirect image

The infraorbital artery runs along the infraorbital groove and canal with the infraorbital nerve, where it gives off branches to the inferior oblique and inferior rectus muscles and anastomoses with the lacrimal and the third segment of the ophthalmic artery.

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