Circulatory & Respiratory System

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Across

1. liquid part of blood

5. Lower chambers of the heart

7. tiny blood vessels that connect arterioles to venuoles

8. carries oxygen to cells

9. largest artery in the body

10. carried by hemoglobin in blood to cells

11. Type of muscle that makes up the heart

13. oygen carrying protein in the blood

14. part of blood that forms clots

Down

2. blood vessels that carry blood away from the heart

3. part of blood that fights infections

4. wall of tissue that separates the heart down the middle

6. Upper chambers of the heart

12. blood vessels that carry blood back to the heart

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