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25 questions
What takes blood back to the heart?
arteries
veins
capillaries
The main artery in the heart is the
aorta
vena cava
pulmonary artery
pulmonary flow
What organ does the blood flow to in order to pick up Oxygen?
liver
stomach
brain
lung
Which side of the heart has the oxygenated blood?
Left
right
both
top
What keeps blood from flowing backwards in the heart?
atrium
valves
artery
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