Across
- 1. the blood flow go from the atrium or ventricle
- 7. rich oxygen through the body
- 8. blood flow to the veins or artery
- 9. let blood come back to the heart after it leaves
- 10. Controls levels of heartbeat
Down
- 1. deoxygenated blood from organs to the heart
- 2. the blood flow to the ventricle
- 3. oxygenated blood to the lungs
- 4. muscle makes the heart go "lub dub"
- 5. blood with oxygen to the heart and body
- 6. the arteries to the veins