Across
- 2. leading to the heart
- 5. the first stop for blood in the heart
- 6. gives oxygen to blood
- 7. the doors of the heart
- 8. leading away from the heart
Down
- 1. the exchange point for blood and oxygen
- 2. the second stop for blood in the heart
- 3. main vein that leads into the heart
- 4. relating to lungs