Across
- 3. what is the white material around the heart?
- 5. What tubes carry blood away from the heart?
- 6. What 'V' are the names of the lower chambers of the heart?
- 8. What 'V' act like doors to control the flow of blood in the heart?
Down
- 1. The movement of blood through the heart and body is called
- 2. The organ that pumps blood around the body
- 3. How many chambers does the heart have?
- 4. What tubes carry blood back to the heart?
- 7. What organ does the blood get oxygen from?