Across
- 2. pumps blood throughout body
- 5. bottom two chambers
- 6. atria and ventricles
- 8. closed vascular structure in mammals
- 10. carry blood away from the heart
Down
- 1. connect arteries and veins
- 3. poisonous to dogs
- 4. two top chambers
- 7. carry blood to the heart
- 9. consists of heart, blood, blood vessels