[Practical anatomy of the frontal and facial veins]

The frontal and facial veins of 15 adult cadavers were dissected. The main branch(es) of the frontal vein may be single (13.3%), dual (80.0%), or triple (6.7%). Blood from the veins around the orbit is collected by the venous sinus in the inner canthus, and the transverse dorsal nasal vein is a bridge between the venous sinuses of both sides. Therefore, veins around the orbit on both sides can be radiographed by venous puncture on either side. The facial vein is S-shaped and composed of 4 segments. Projective locations of the veins are described, with suggestions for practical clinical applications.