Across
- 2. deoxyenated blood leaves the right ventricle of the heart
- 4. a double walled sac
- 6. sudden loss of heart function
- 7. lubricates the heart during contractions
- 9. the size of a fist
- 10. separates the two sides of the heart
- 12. produces the electrial pulses that drive heart contractions
- 13. the inner wall of the pericardium
- 14. this and the tricuspid valve make up the atrioventricular
Down
- 1. the heart circulates blood through here
- 3. contains the muscle that contracts
- 5. conntracts to push blood into ventricle
- 8. blockage of any arteries can cause a
- 11. deoygenated blood returns via veins to the
- 15. oxygenated blood leaves the body via