Vein Emissary Occipital

The occipital emissary vein (lat. vena emissaria posterior) is a subcutaneous venous arch that connects the posterior great cerebral vein on one side with the vertebral venous plexus on the other side. It connects the inside of the back of the head with the veins of the temporal and parietal regions of the head. Under normal conditions, veins are absent in the literal sense of the word, since they are fibrin fibers that open to extensions, arterioles. Together they form an emissary complex. Usually they come from both sides. The right and left are on average equal in length, but the left is approximately 2 cm longer. AT 4