Final answer:
The internal jugular vein is the name of the vein that carries blood from the head back to the heart.
Step-by-step explanation:
The vein that carries blood from the head back to the heart is called the internal jugular vein.
It receives blood from the brain and the superficial facial vein and flows into the subclavian vein.
The internal jugular vein is part of the major veins of the head and neck, along with the external jugular vein, which drains blood from the superficial portions of the head, scalp, and cranial regions.