Blood enters the heart through two large veins, the inferior and superior vena cava, emptying oxygen-poor blood from the body into the right atrium of the heart. As the atrium contracts, blood flows from your right atrium into your right ventricle through the open tricuspid valve.
Answer:
"I will need to lie on my stomach during the procedure."
Explanation:
Set-ups, they're bad for the back, and can cause major injuries.
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