Across
- 2. Smooth layer of cells lining the interior of the heart
- 7. Structure that prevents backward flow of blood
- 8. Blood vessels that carry blood towards the heart
- 9. Process of preventing and stopping bleeding
- 11. Outermost layer of the heart wall
- 13. Relating to the lungs
- 14. Tiny blood vessels where gas exchange occurs
Down
- 1. Iron-containing protein in the red blood cell that carriers oxygen
- 3. Pertaining to the heart and blood vessels
- 4. Middle layer of the heart wall, composed of muscle tissue
- 5. Blood vessels that carriers blood away from the heart
- 6. Rhythmic throbbing of the arteries, often felt at the wrist.
- 8. Tubes that carry blood
- 10. Partition separating the chambers of the heart.
- 12. Largest artery in the body