Across
- 1. structures that return blood to the heart
- 4. responsible for pumping blood
- 8. another word for the heart
- 9. a chest pain or discomfort that occurs if an area of the heart muscle doesn't get enough oxygen
- 10. structures that carry blood away from the heart
Down
- 1. a tissue with small leaflets that open and close in one direction
- 2. a procedure to widen the plaque-filled coronary arteries in the heart
- 3. wall of muscles that separate the left and the right sections of the heart
- 5. any type of exercise that causes the heart to beat faster and harder for a period of time
- 6. large artery that pushes blood with oxygen out to the body
- 7. a device that regulates the heartbeat