Across
- 2. The two lower chambers, which are responsible for pumping blood out of the heart.
- 5. The phase of the heartbeat.
- 6. The muscular tissue of the heart.
- 10. Supply blood to the heart muscle.
- 12. A fine branch of blood vessels.
- 13. The two upper chambers in the heart that receive blood.
- 14. A structure in you heart that has a flap that opens and closes.
Down
- 1. controls the flow of blood from your heart's right atrium.
- 3. Thin, smooth membrane the lines the chambers of the heart.
- 4. A blowing, whooshing, or rasping sound heard during a heartbeat.
- 7. The number of times your heart beats per minute.
- 8. Main artery in our body.
- 9. A large blood vessel.
- 11. Gas that enters the body through the lungs.
- 13. of the heart bottom tip of our heart.