Across
- 3. These arteries supply blood to the myocardium
- 4. This atrium receives deoxygenated blood from the venae cavae
- 5. The contraction phase of the heartbeat
- 7. The sac containing the heart
- 8. This membrane lines the 4 heart chambers
- 9. These medications relax smooth muscle in arterial walls
- 11. Vessels that carry blood away from the heart
- 12. This ventricle pumps blood to the aorta
Down
- 1. Incompetent valves can lead to these types of veins
- 2. These microscopic vessels allow nutrient and gas exchange
- 5. Also known as the pacemaker of the heart
- 6. This valve is between the right atrium and right ventricle
- 10. These medications lower cholesterol