Across
- 3. the separation of the four champers of the heart.
- 5. the inflammation of the vein.
- 6. gas that enter the blood through the lungs and travel to the heart.
- 7. the largest vein in the body.
- 10. the innermost epithelia cell.
- 11. valve located between the right atrium and left ventricle.
- 13. allows blood to travel to all part of the body.
- 14. the artery that supply blood to the neck and head.
Down
- 1. Inadequate oxygen in tissues.
- 2. the pacemaker of the heart.
- 3. the contractive part of the heartbeat.
- 4. the only artery in the body that carries blood deficient in oxygen.
- 8. the lining of the outer fibrous coat.
- 9. the heart beat is felt through the wall of arteries.
- 12. keeping the blood movement in one direction.