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
My Heart Bleeds the Darkest Blood gonna be gray. And it's gonna last you for the rest of your life." in Groundhog Day. (1993) The lyric, "A rock feels no pain," is inspired by Simon & Garfunkel's 1965 song, "I Am A Rock." A music video was made for the song in 1997. Brian Fair of Overcast & Shadows Fall and Jerry Villarroel of Morning Again made an appearance in the video. My Heart Bleeds the Darkest Blood "My Heart Bleeds the Darkest Blood" is a song from the hardcore punk band Shai Hulud from their debut album "Hearts Once Nourished with Hope and Compassion". It