Across
- 1. -blood vessel that carries blood toward the heart
- 3. -A white blood cell
- 4. -muscular middle layer of the heart wall
- 5. -smallest and thinnest type of blood vessel
- 6. -blood vessel that carries blood away from the heart
- 8. -platelets
- 11. -blood vessel that carries deoxygenated blood
- 12. -upper chamber of the heart that receives blood
- 13. -double-layered membrane that surrounds and protects the heart
- 14. -The large veins that carry deoxygenated blood from the body back to the heart
- 15. -lower chamber of the heart responsible for pumping blood
Down
- 2. -A red blood cell
- 7. -inner lining of the heart chambers and heart valves
- 9. -largest artery in the body
- 10. -blood vessel that carries oxygenated blood