Across
- 3. deficiency, blockage
- 4. thymus gland
- 5. vein
- 9. lymph
- 10. vessel, usually blood vessel
- 11. heart
- 14. sound
- 15. clot
- 17. electricity, electrical activity
- 18. heart
Down
- 1. artery
- 2. aorta
- 5. plasm
- 6. valve
- 7. heat
- 8. vein
- 12. yellow, fatty plaque
- 13. ventricle
- 16. spleen