Across
- 4. double layered membrane surrounding the heart
- 6. small vein
- 7. takes blood from the lower part of the body to the heart
- 8. small artery
- 11. largest blood vessel,carries blood away from the heart
- 12. connects the left atrium and ventricle
- 14. smallest blood vessel
- 15. partition dividing a cavity
Down
- 1. another name for mitral valve
- 2. connects the right atrium and ventricle
- 3. largest veins
- 5. takes blood from the upper part of the body to the heart
- 9. largest artery
- 10. middle layer of the heart
- 13. carries blood to the heart