The Heart

2. This is a big artery that takes oxygenated blood away from the heart and out to the body.
7. This is another name for the mitral valve
9. These blood vessels bring deoxygenated blood back to the heart.
12. The closing of heart valves makes this sound.
13. Large blood vessel with thick walls, smooth muscles and small lumen; takes blood away from the heart.
14. These are the chambers that receive blood.
16. This is the circulation that goes throughout the body.
17. These blood vessels’ walls are only one cell thick, which enables the exchange of materials from the blood to cells and from the cells to the blood.

1. This valve separates the left atrium from the left ventricle.
3. This valve separates the right atrium from the right ventricle.
4. This is the circulation that goes through the lungs to pick up oxygen and release carbon dioxide.
5. Type of muscle tissue that makes up the heart.
6. The walls of the left ventricle are the _________________ because it needs to pump blood through the entire body.
8. Large blood vessel with thin walls and large lumen; brings blood back to the heart.
9. These are the chambers that pump blood out of the heart.
10. The heart has _____ chambers.
11. This valve prevents oxygenated blood from moving backward into the left ventricle.
15. This valve prevents deoxygenated blood from moving backward into the right ventricle.