Tag Archives: emissary veins

The Sinuses of the Dura Mater

(Sinus Duræ Matris). Ophthalmic Veins and Emissary Veins The sinuses of the dura mater are venous channels which drain the blood from the brain; they are devoid of valves, and are situated between the two layers of the dura mater and lined by endothelium continuous with that which lines the veins. They may be divided […]