1 – Facial vein; 2 – Inferior ophthalmic vein; 3 – Cavernous sinus; 4 – Lacrimal vein; 5 – Superior ophthalmic vein; 6 – Supratrochlear veins;
7 – Angular vein; 8 – Vorticose veins; 9 – Infraorbital vein
1 – Facial vein; 2 – Inferior ophthalmic vein; 3 – Cavernous sinus; 4 – Lacrimal vein; 5 – Superior ophthalmic vein; 6 – Supratrochlear veins;
7 – Angular vein; 8 – Vorticose veins; 9 – Infraorbital vein