Across
- 1. thickest and strongest layer of the heart
- 5. two-layered, serous membrane that covers the outermost layer of the heart
- 7. thin layer of connective tissue that lines the interior of the heart
- 8. keeps blood moving forward to prevent backflow
- 9. abnormal accumulation of fluid in the thoracic cavity between the visceral and parietal pleurae
- 10. location of the heart in the thorax
Down
- 2. carries blood away from the heart
- 3. SA node of the heart, regulates the heartbeat
- 4. inherent ability to contract in a rhythmic pattern
- 6. Delivery of oxygen and nutrient-rich arterial blood to cardiac muscle tissue and return of oxygen-poor blood from this active tissue to the venous system.
- 8. carries blood towards the heart