Across
- 8. refers to the amount of pressure in the arteries while the heart is resting in between heartbeats
- 9. thick layer of cardiac muscle
- 11. amount of pressure experienced by the arteries while the heart is beating
- 14. defect in arterial wall
- 15. deoxygenated side of heart
- 17. is one of the most important regulated variables in the body
- 18. oxygenated side of heart
Down
- 1. fibrous sac that surrounds the heart
- 2. carry blood away from the heart
- 3. exchange solutes, water, and gases with cells of the body
- 4. tracks electrical activity of the heart
- 5. maintains blood volune, returns excess fluid to circulatory system
- 6. small mass of cardiac cells
- 7. mycardial infraction
- 10. return blood to the heart
- 12. pump composed entirely of living cells and cellular materials
- 13. may be a sign of a defective valve
- 16. low blood pressure