Across
- 4. Lower chambers of the heart
- 5. thin-walled blood vessels that carry blood towards the heart
- 7. Upper chambers of the heart
- 8. smallest blood vessels in the body and involved in temperature regulation
- 10. fights off infections and diseases
Down
- 1. important in sealing cuts, and in blood clotting
- 2. carry blood away from the heart
- 3. makes up the majority of blood and is mostly water
- 6. Largest artery in the body
- 9. contains hemoglobin and carries oxygen to our cells