Cardiovascular System

3. forms a protective inner lining of the chambers and valves
5. vessel that transport blood away from the heart
8. clumping of red blood cells
9. disease where deposits of fatty materials form in the lining of veins
10. rings of dense connective tissue surrounding the pulmonary trunk and aorta
12. inflammation of a vein
14. largest artery in the body
21. layer of the heart wall that is the thickest and contains cardiac muscle cells
22. the two upper chambers of the heart
23. the difficulty with which molecules of a fluid flow past one another
24. transports blood to the heart
25. small arteries
27. circuit that delivers oxygen to all body cells
30. condition in which the oxygen carrying capacity of the blood is reduced to deficiency of RBCs or hemoglobin
33. connect arterioles and venules
34. small veins
35. circuit that sends deoxygenated blood to the lungs

1. lower chambers of the heart
2. valve between the right atrium and right ventricle
4. relaxation of the heart
6. arteries that pass from the aorta to the kidneys
7. paired arteries that supply blood to the diaphragm
11. a recording of the electrical changes during the cardiac cycle
13. artery in the upper thigh
15. help increase blood volume capacity of the atria
16. specialized cardiac muscle fibers that conduct the cardiac impulse into ventricular walls
17. valve that prevents blood backflow from the aorta into the left ventricle
18. surge of blood pressure felt through the walls of arteries due to heart contraction
19. forms a protective outer covering and secretes serous fluid
20. organ of the cardiovascular system that pumps blood
26. contraction of the heart
28. valve between the left atrium and the left ventricle
29. pertaining to the heart and blood vessels
31. high blood pressure
32. abnormal and irregular dilations in superficial veins