Across
- 2. happens when a part of the heart muscle doesn't get enough blood
- 4. a pair of spongy air-filled organs located on either sides of the chest
- 6. the largest artery in the body and the man vessel to supply blood from the heart
- 8. the valve that regulates blood flow from the heart into the aorta
- 9. The muscle that beats in your chest and pumps blood throughout the body
- 10. carries oxygen depleted blood toward the heart
Down
- 1. either one of the hearts upper chambers
- 3. air sacs in the lungs where oxygen and carbon dioxide are exchanged
- 5. transmits blood nutrients and oxygen to cells in your organs
- 7. carries oxygenated blood from the heart to all the body parts