Across
- 3. - carries blood from the head, neck, arms, and chest.
- 6. - makes up the thick middle layer of the heart.
- 9. -stimulate the heart with electrical impulses to maintain or restore a normal heartbeat.
- 11. - heart chamber that receives blood into the heart and drives it into a ventricle, or chamber, for pumping blood away from the heart.
Down
- 1. - prevent the backward flow of blood.
- 2. - any of the tubes forming part of the blood circulation system of the body, carrying in most cases oxygen-depleted blood toward the heart.
- 4. - each of the two main chambers of the heart, left and right.
- 5. -They transport blood, nutrients and oxygen to cells in your organs and body systems
- 7. - the main artery that carries blood away from your heart to the rest of your body.
- 8. - separates the ventricles and allows for proper blood flow through the heart
- 10. - the blood vessels that bring oxygen-rich blood from your heart to all of your body's cells.