Across
- 4. a thin serous membrane lining the cavities of the heart
- 5. cell fragments & plasma proteins
- 6. the outermost protective layer of the heart
- 9. Carry blood away from the Heart
- 10. a dividing wall or membrane especially between bodily spaces
- 11. measured beats when blood pressure is at its lowest
- 12. measured when the heartbeats are the highest
- 13. a fist-sized organ that pumps blood throughout your body
- 16. A fluid-filled cavity in the heart or brain
- 17. makes up 55% of the blood volume
Down
- 1. The muscle layer of the heart
- 2. Red Blood Cells
- 3. indicates the number of heartbeats per minute
- 7. Bring nutrients & oxygen to the tissues
- 8. White Blood Cells
- 14. Carry blood to the Heart
- 15. the two upper chambers of the heart