Across
- 4. The ________ valve separates the right atrium from the right ventricle.
- 6. Facilitate the exchange of oxygen and nutrients between organs and tissues.
- 8. Carry blood back to the heart.
- 10. Carry blood away from the heart.
- 11. Left and Right ______ receive blood entering the heart.
Down
- 1. The circulatory system is made up of blood ______.
- 2. Left and Right ___________ pump blood out of the heart.
- 3. The ______ valve separates the left atrium from the left ventricle.
- 5. The system that circulates blood and lymph through the body.
- 7. Works to pump blood throughout your body through blood vessels.
- 9. The main ______ that work together: the heart, lungs, arteries, and veins.