Cardovascular Crossword

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Across
  1. 4. a large vein that carries deoxygenated blood from the body back to the heart
  2. 5. muscular chamber that pumps blood out of the heart and into the circulatory system
  3. 7. a vital part of the body's immune system, playing a key role in fighting infections and defending against foreign invaders
  4. 9. the smallest type of blood vessel in the body
  5. 10. tiny cell fragments in the blood that play a crucial role in blood clotting, preventing and stopping bleeding
  6. 11. muscular tissue that forms the middle layer of the heart wall
  7. 13. functional components of blood responsible for transporting gases and nutrients throughout the human body
  8. 14. a double-layered sac that surrounds the heart and its roots
Down
  1. 1. a blood vessel that carries oxygen-rich blood from the lungs back to the heart
  2. 2. the largest artery in the human body, carrying oxygenated blood from the heart to the rest of the body
  3. 3. a chamber in the heart that receives blood from the body or lungs and pumps it into a ventricle
  4. 4. a blood vessel that carries blood from the body's tissues back to the heart.
  5. 6. the innermost layer of the heart wall, lining the chambers and valves
  6. 8. a major blood vessel that carries deoxygenated blood from the heart's right ventricle to the lungs for oxygenation
  7. 12. a blood vessel that carries oxygenated blood away from the heart to the rest of the body