Across
- 1. Close circuit of tubes through which blood flows
- 3. Where exchange of materials(nutrients, gas, waste) takes place
- 7. movement of blood through the tissues of the heart
- 9. Responsible for carrying blood back to the heart
- 10. It contain oxygenated blood
- 11. Cone-shaped muscular organ that pumps blood throughout the body
- 12. Gas that is essential to life
Down
- 2. movement of blood from the heart to the rest of the body
- 4. Organ system in-charge of gas exchange
- 5. movement of blood from the heart to the lungs
- 6. Internal circulating medium of the body
- 8. Organ system responsible for the circulation of the blood