Across
- 3. The name of the lower heart chambers
- 5. Blood delivers calcium to aid this system
- 7. Another name for extracellular matrix
Down
- 1. Blood does this after an injury
- 2. A type of blood vessel that carries blood to the heart
- 4. The leading cause of death, in abbreviation
- 6. The heart helps pump oxygen to this organ
- 8. Blood carries digestive nutrients to this organ