Across
- 3. This organ pumps life throughout your body.
- 4. The main artery that carries oxygen-rich blood away from the heart.
- 6. The system that includes the heart and all the blood vessels.
- 9. A protein in red blood cells that binds oxygen.
- 10. A type of blood cell involved in clotting.
- 13. These help control the direction of blood flow within the heart.
- 15. The type of blood cell that carries oxygen to all parts of your body.
- 17. The overarching system responsible for blood circulation and transport of nutrients.
- 20. The smallest blood vessels where oxygen and nutrients are exchanged with cells.
Down
- 1. A type of blood cell that helps your immune system fight infections.
- 2. Lower chambers of the heart that pump blood out to the lungs and body.
- 5. These vessels carry blood back to the heart.
- 7. Found inside your bones, this tissue is crucial for producing blood cells.
- 8. Any substance that provides the necessary elements for growth and health.
- 11. The part of your heart that receives blood from the body or the lungs.
- 12. The rhythmic beat felt when blood is pumped through the arteries.
- 14. The main component of your circulatory system.
- 16. A vital gas that blood cells transport to every part of your body.
- 18. A type of blood vessel that carries oxygenated blood away from the heart.
- 19. The liquid part of your blood that carries important proteins and nutrients.