Across
- 3. double-layered membrane that surrounds the heart
- 4. regular however rapid contraction usually in the atria
- 5. largest artery in the body
- 9. smallest of blood vessels
- 10. inner lining of the blood vessels
- 12. blue coloring
- 14. instrument used to measure the blood pressure
Down
- 1. largest vein in the body
- 2. an abnormal swishing sound from improper closure of heart valves
- 6. heartbeat
- 7. meaning heart
- 8. upperchamber of the heart
- 11. structure that temporarily closes and opens that blood flows in one direction
- 13. when the heart is unable to pump the appropriate amount of blood
- 15. enters the blood through inspiration form the lungs