Beautiful Blood Crossword

This doctor in the 2nd century studied blood.
The 2nd century doctor tried to understand blood, but was wrong about a lot of things. He didn't know the heart is a _______ pushing blood around the body.
Blood passes through the _______ to get the oxygen the cells in your body all need.
________ blood cells carry oxygen.
_________ blood cells are a defense system, fighting bacteria and viruses.
___________ is the liquid the blood cells float in.
Platelets protect you when blood vessels are damaged, by causing the blood to ________.
One type of skink has blood that is this color.
These are small animals that live in water and very wet places. Most types drink blood.
The small blood-sucking water animals used to be used by ____________ to treat sicknesses.
Blood brings things to our cells that they need, like oxygen, messages, and ________.
The science term for how blood moves all around our body, away from the heart, and then back to it again.
In black and white movies, what was often used for fake blood? (two words)
Horseshoe crabs have blood that is not red, but _______.
In the 1600's, William Harvey figured out that blood is reused, over and over again. It's motion is like a _________.
Mythical creatures who bite people to get their blood.