Across
- 1. Prevents heart from beating to slowly.
- 4. Two chambers responsable for collecting blood and pushing it to the next.
- 6. Tubes that help with the process of blood circulation to the heart.
- 8. Wall separating the left and right sides of the heart.
- 9. Large vein carrying non-oxygenated blood into the heart.
- 11. Main two lower chambers of the heart.
Down
- 2. Any muscular wall tubes to help with blood flow from the heart to around the body.
- 3. Responsible for the contraction (beating) motion in the heart.
- 5. Any of the fine blood vessels forming a network structure.
- 7. Blood passes through here before exiting the heart.
- 10. Main artery, supplying oxygenated blood to the circulatory system.