Across
- 1. pulls oxygen into the lungs
- 4. which side of the heart is oxiginated
- 5. connects arteries to veins
- 7. gives the blood back to the heart
- 9. stops back flow in blood
Down
- 2. Creates blood clots
- 3. the heart is mostly made of this
- 6. upper chamber of the heart
- 8. pumps blood