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"The Cycle" of the Cardiovascular System: 1._______________ is sent throughout the body with every heartbeat. 2. _______________ begins to circulate when the heart relaxes between two heartbeats. The blood
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"The Cycle" of the Cardiovascular System: 1._______________ is sent throughout the body with every heartbeat. 2. _______________ begins to circulate when the heart relaxes between two heartbeats. The blood then releases 3.____________ and 4.___________ to the cells and takes on 5._____________ and other waste. The 6._______________ blood returns to the heart after transporting nutrients and oxygen. The 7.______________ pumps blood back to the 8._______________ to pick up more 9.________________, then the cycle repeats. I don't know what goes in the blanks!

User Jonathanatx
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1. Blood
2. Blood
3. Oxygen
4. Nutrients
5. Carbon Dioxide
6. Oxygenated
7. Lungs (through arteries)
8. Heart
9. Oxygen
I’m not 100% sure because I learned them by labels (vena cava, valves, chambers etc.) but I hope this helped :)
User Tomasz
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4.7k points
6 votes
I think the 3rd is carbon dioxide. If that helps.
User Ataraxic
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