The Cardiovascular System

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