Ch. 13 & 14 - The Cardiac System & Vessels and Circulation
Across
- 1. This node delays the signal to keep the heart beating rhythmically
- 3. Decreases arterial volume, which decreases blood pressure
- 4. The artery supplies blood to the upper extremities
- 5. The myocardium receives its blood supple from these arteries
- 6. This artery supplies blood to the gut
- 8. The S2 sound when the aortic and pulmonic valves close
- 9. This artery supplies blood to the lower extremities
- 11. Atrial contract during this phase of the cardiac cycle
- 13. Initiates the signal for the heart to contract
- 14. This artery supplies blood to the brain.
- 15. Stroke volume times HR over one minutethe heart in one minute.
- 16. Contraction of the ventricles, forcing blood into the aorta and pulmonary artery
- 18. Carries signals up through the ventricles, stimulating contraction from the bottom upwards
- 19. The innermost layer of the heart
Down
- 2. Increases arterial volume, which increases blood pressure
- 7. Conveys the signal to the apex of the heart
- 10. One complete sequence of heart contraction and relaxation
- 12. The S1 sound when the tricuspid and mitral valves close
- 17. The volume of blood pumped from the left ventricle per beat