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
The Blood Book Books," which would give insight into the minds of two characters from his Circle Series, presumably Thomas Hunter and an enemy. As time went on, the two books merged into a single book. In 2009, Ted released "Immanuel's Veins", in which a Blood Book plays a significant role. On his Facebook page, Ted Dekker posted suggesting that he would not publish "The Blood Book", but after much protest from his fans, he consented. In 2011, in an effort to promote his newest thriller novel, "The Priest's Graveyard", Ted began a campaign entitled "Share the Love". Participants had to pre-order at