Cardiovascular System Crossword Puzzle

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Across
  1. 1. any of the tubes forming part of the blood circulation system of the body, carrying in most cases oxygen-depleted blood toward the heart
  2. 4. keeps the heart in a stable location in the mediastinum, facilitates its movements, and separates it from the lungs and other mediastinal structures
  3. 6. unique veins that carry oxygenated blood from the lungs back to the heart, specifically the left atrium
  4. 8. the middle layer of the heart's wall, composed of cardiac muscle tissue
  5. 9. each of the two upper cavities of the heart from which blood is passed to the ventricles
  6. 10. a hollow part or cavity in an organ
  7. 11. the body's largest artery, responsible for carrying oxygen-rich blood from the heart to the rest of the body
  8. 12. the Platelets
Down
  1. 2. the thin, smooth membrane which lines the inside of the chambers of the heart and forms the surface of the valves
  2. 3. The white blood cells
  3. 5. A large vein that carries blood to the heart from other areas of the body
  4. 6. blood vessels that carry oxygen-poor blood from the right side of your heart to your lungs
  5. 7. the Red blood cells
  6. 9. any of the muscular-walled tubes forming part of the circulation system
  7. 13. any of the fine branching blood vessels that form a network between the arterioles and venules