Answer:
yea they do
Step-by-step explanation:
yes, in fact they do.
Circulatory System
The most profound differences between humans and vampires are found in the circulatory system. These differences enable vampires to survive massive trauma that would kill a human being.
Blood: vampire blood is called ichor (pr. ik-er). Modifications to hemoglobin in the blood cells makes vampire blood appear black.
the Heart: vampire blood is pumped via the contraction of skeletal muscle rather than the heart, which eventually atrophies from disuse.
hope this helps