Across
- 1. Prevents blood from flowing/going backward
- 6. The circulation of blood between the heart and the rest of the body
- 7. A blood vessel that carries blood away from the heart
- 8. The throat
- 9. When the heart is too weak to pump enough blood to meet the body's needs
- 11. The cause of when the heart contracts, and blood is pushed out of the heart into the arteries
- 13. The windpipe
- 15. What your heart, blood, and blood vessels ,make up
- 18. Blood cells that keep you healthy by destroying pathogens
- 20. When heart muscle cells do not get enough blood
- 21. A connective tissue made up of plasma, red blood cells, platelets, and white blood cells
- 23. A tiny blood vessel that allows exchanges between body cells and blood
- 24. Hollow tubes that blood travels through
- 25. A mixture of water, minerals, nutrients, sugars, proteins, and other substances
- 26. A blood vessel that carries blood back to the heart
Down
- 2. Tiny air sacks in the lungs
- 3. Each lower chamber
- 4. The group of organs that take in oxygen, and remove carbon dioxide
- 5. The circulation of blood between your heart and lungs
- 10. Each upper chamber
- 12. The part of the throat that contains the vocal cords
- 14. The process by which the body gains and uses oxygen and gets rid of carbon dioxide and water
- 16. Supply oxygen for every living cell in your body
- 17. An organ made mostly of cardiac muscle tissue
- 19. Pieces of larger cells found in bone marrow
- 22. One of the two tubes that connect to the lungs