Across
- 4. Large vessel
- 5. Low red blood cell count
- 7. carry blood away from heart
- 9. thickest wall of heart
- 11. covering the myocardium
- 12. forming a plug
- 13. abnormal flow of blood
Down
- 1. beating action of heart
- 2. Heart beating slower than normal
- 3. Heart isn't contracting properly
- 6. chamber on left side of heart
- 8. transports oxygen
- 10. layer of heart