Across
- 1. lower cavities
- 4. cava- large vein carrying deoxygenated blood
- 6. carry oxygenated blood away from the heart
- 7. Valve-regulates blood flow between the right atrium and right ventricle
- 8. veins-collects deoxygenated blood from heart muscle tissue
- 9. volume-amount of fluid in blood
- 10. innermost layer of tissue that lines the chambers of the heart
- 12. double wall sac containing the heart and the roots of vessels.
- 15. muscular tissue of the heart
- 17. cycle- series of myocardial contractions and relaxations
- 19. arteries- supply blood to the walls of the heart
- 20. valve- between left ventricle and aorta
- 21. pressure- when the heart wall relaxes
Down
- 2. pressure- phase of the cardiac cycle when the heart wall contracts
- 3. recording of electrical activity associated with a heartbeat.
- 5. serous membrane forms innermost layer of the heart
- 11. each of the two upper cavities of the heart from which blood is passed
- 12. valve- regulates blood flow between right ventricle and pulmonary artery.
- 13. major artery that receives blood from left ventricle
- 14. output- volume of blood ejected from the left side of the heart in one minute
- 16. small blood vessels that connect arterioles and venules
- 18. valve- regulates blood flow between left atrium and left ventricle.