Head and neck anatomy may be important in the development of the BBB. Astrocytes may also be responsible for transporting ions (electrolytes) from the brain to the blood. Blood from the brain and neck flows from: (1) within the cranium via the internal jugular veins, a continuation of the sigmoid sinuses. The right and left external jugular veins drain from the parotid glands, facial muscles, scalp into the subclavian veins. The right and left vertebral veins drain the vertebrae and muscles into the right subclavian vein and into the superior vena cava, into the right atrium of the heart. The lymphatic system drains the
Tales from the Heart with nine later issues published by Slave Labor Graphics (from 1988 to 1994). Slave Labor published "Tales from the Heart: Hearts of Africa" in 1994, which collected issues #1-3 and featured an introduction by Neil Gaiman. Two color graphic novels, "Tales from the Heart of Africa: The Temporary Natives" (1990) and "A Tale From the Heart of Africa: Bloodlines" (1992) were published by the Marvel Comics imprint Epic Comics. "A Tale From the Heart of Africa: Bloodlines" (Epic, 1992) was nominated for two Eisner Awards in 1993, for Best Single Issue, Self-Contained Story; and Best Graphic Album — New. Tales