Emissary veins passing through the foramen ovale, jugular foramen, foramen lacerum, and hypoglossal canal. Because the emissary veins are valveless, they are an important part in selective brain cooling through bidirectional flow of cooler blood from the evaporating surface of the head. In general, blood flow is from external to internal but the flow can be altered by increased intracranial pressure. A type of emissary vein goes through the sphenoidal emissary foramen inferior to the zygomatic arch with the cavernous sinus on the inside of the skull. This is an important route for spread of infection because cranial nerve VI and the
Returning to the 'A' Returning to the 'A' Returning to the 'A' () is a 2011 Kazakhstani drama film directed by Egor Konchalovsky. The film was selected as the Kazakhstani entry for the Best Foreign Language Film at the 84th Academy Awards, but it did not make the final shortlist. A young, creative team of TV Russian and Kazakh cinematographers are sent on a perilous journey from Almaty to Afghanistan to film a documentary film "In the Footsteps of Alexander the Great". They are accompanied by a man who once fought on the land of Afghanistan and lost a leg in the fighting -