Across
- 2. Vessels that carry blood throughout the body.
- 4. Prevents the backwards flow of blood. Act as "doors" and are located at the end of each ventricle.
- 5. Vessels that carry oxygen-rich blood to your entire body.
- 6. A certain type of muscle tissue that makes up the structure of the heart.
- 7. The main artery of the body, supplying oxygenated blood to the circulatory system.
- 8. The heart's natural rhythm generator, can be mechanical if the natural one is too weak.
- 9. Two upper cavities of the heart, Responsible for passing blood to the ventricles.
- 10. The wall of tissue dividing the right and left sides of the heart.
Down
- 1. Two lower cavities of the heart, Responsible for pumping blood out of the heart.
- 3. A large vein that supplies the heart with deoxygenated blood. There are two located in humans, one for lower body and another for upper body.
- 6. Miniature blood vessels that supply the body with blood, nutrients and oxygen.