The angular artery is the terminal part of the facial artery

Facial artery

The facial artery is a branch of the external carotid artery that supplies structures of the superficial face.-Structure:...

; it ascends to the medial angle of the eye's orbit

Orbit

In physics, an orbit is the gravitationally curved path of an object around a point in space, for example the orbit of a planet around the center of a star system, such as the Solar System...

, imbedded in the fibers of the angular head of the Quadratus labii superioris, and accompanied by the angular vein

Angular vein

The angular vein formed by the junction of the frontal vein and supraorbital vein, runs obliquely downward, on the side of the root of the nose, to the level of the lower margin of the orbit, where it becomes the anterior facial vein....

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On the cheek it distributes branches which anastomose with the infraorbital

Infraorbital

Infraorbital is an anatomical term which means, literally, inferior to the eye socket . Some examples of uses of the term are:* Infraorbital artery* Infraorbital foramen* Infraorbital canal* Infraorbital groove...

; after supplying the lacrimal sac

Lacrimal sac

The lacrimal sac is the upper dilated end of the nasolacrimal duct, and is lodged in a deep groove formed by the lacrimal bone and frontal process of the maxilla...

 and Orbicularis oculi, it ends by anastomosing with the dorsal nasal branch of the ophthalmic artery

Ophthalmic artery

The ophthalmic artery is the first branch of the internal carotid artery distal to the cavernous sinus. Branches of the OA supply all the structures in the orbit as well as some structures in the nose, face and meninges...

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External links

• Diagram at stchas.edu