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1. The upper chambers of the heart are the _____
2. The lower chambers of the heart are the _____
3. When both ventricles relax and refill this is the ________
4. When both ventricles contract and pump the blood out through another series of valves this is the_________.
Q 5-6 Select Physiology.
5. Oxygen poor blood flows from the right atrium to the right ventricle that pumps blood out through the _________ to the lungs.
6. The freshly oxygenated blood returns to the left atrium of the heart by way of the ______.
Q 7-10 Select Continue.
7. Oxygen rich blood flows down through the left atrium to fill the left ventricle, which pumps into the _____.
8. Blood flows from the aorta into smaller _________, which carry it to all body organs and tissues.
9. From the arterioles, blood flows into thin walled blood vessels called _______________.
10. After flowing through venules, then veins, eventually all blood enter either the superior or inferior ____________ which empty into the heart.
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