Infraorbital vein
The infraorbital vein arises on the face by the union of several tributaries. Accompanied by the infraorbital artery and the infraorbital nerve, it passes posteriorly through the infraorbital foramen, infraorbital canal, and infraorbital groove. It drains through the inferior orbital fissure into the pterygoid venous plexus. It receives tributaries from structures that lie close to the floor of the orbit and communicates with the inferior ophthalmic vein.
