Across
- 2. The beating sound your heart makes comes from ... closing
- 6. The name for "downstairs" chambers
- 7. ... arteries carry deoxygenated blood
- 9. The name for "upstairs" chambers
- 10. The arteries on the outside of the heart, supplying the heart with oxygen, are called ... arteries
Down
- 1. Oxygen and carbon dioxide exchange occurs in the ...
- 2. The name of the tubes that carry blood back to the heart
- 3. The heart has ... chambers
- 4. The movement of blood through the heart and body is called
- 5. The name of the wall which separates the heart into two sides
- 8. The left side of the heart sends blood to the ...