Across
- 1. This is when the ventricles contract
- 3. This part of the ECG indicates ventricular depolarization
- 8. These transmit electrical signals rapidly along the atrioventricular bundle
- 10. This is the predominant slower heart beat when the body is not autonomically active
- 14. This prevents blood from flowing back from the ventricles into the atriums
- 17. This system is in charge of the arterial system
- 18. This part of the ECG indicates the period of which the ventricles are relaxing and being filled
- 19. This prevents blood from flowing back from the arteries to the ventricles
Down
- 2. This is a hormone that contributes to increased heart rate
- 4. These are the smallest vessels and are the most important site for exchange of materials
- 5. Triggering this system will slow the heart rate
- 6. when this increases, fluid flow also increases
- 7. Fluid flow divided by the summed cross-sectional area of blood vessels
- 9. These cells are in charge of setting the heart rate
- 10. This describes the blood returning to the heart
- 11. This is when the ventricles are relaxed
- 12. Activating this system will cause an increase in heart rate
- 13. This is the volume of blood that is ejected with each heartbeat; liters divided by beats
- 15. In this phase, the ventricles are relaxed, there is no change in the volume of the ventricles and no blood flows in or out
- 16. This type of muscle fiber has branches and intercalated disks as opposed to skeletal muscle