Arterial supply is usually through meningeal branches of the external carotid, internal carotid, and vertebral arteries. Drainage is via dural venous sinuses or other dural or leptomeningeal channels.
The nutrient arteries of abducens nerves were originated from the dorsal meningealarteries, and 83 3% of them traversed Dorellos canal by one stem, medially to abducens nerves.