facial vein การใช้

However, substantial drainage via the ophthalmic, infraorbital, and deep facial veins communicates with the cavernous sinus ( ref ).
Infections may also be introduced by facial lacerations and by bursting pimples in the areas drained by the facial vein.
This is possible because of venous communication ( via the ophthalmic veins ) between the facial vein and the cavernous sinus.
The venous drainage system of the cheek is predominantly formed by the anterior facial vein, which subsequently communicates with the internal jugular vein.
In patients with thrombophlebitis of the facial vein, pieces of the clot may break off and enter the cavernous sinus, forming a cavernous sinus thrombosis.