Across
- 1. Vessel which carries blood towards the heart
- 2. Vessels where gas exchange occurs
- 8. Structure which divides chambers
- 9. Most of the named arteries are _____ arteries
- 13. Part of the conducting system; right and left
- 14. Smooth muscle sphincter; ____ sphincter
- 20. Discs in cardiac muscle
- 22. Muscular layer of the cardiac wall
- 23. The innermost tunic; tunica ____
- 25. Outer covering of the heart
- 27. Atrioventricular bundle; Bundle of ______;
- 30. Tissue which lines a blood vessel
- 31. Type of capillaries with pinocytotic vesicles
- 32. Left atrioventricular valve
- 34. The smallest arteries
- 37. Receiving chamber of the heart
- 38. The outer tunic; tunica ____
- 39. Type of capillaries with pores
- 40. Cardiac muscle cells
Down
- 1. ______ tendineae
- 3. Atrioventricular node; ___ node (abbreviation)
- 4. Vessel which carries blood away from the heart
- 5. Aortic valve; pulmonary valve
- 6. Muscle which attaches to chordae tendineae
- 7. Receives blood from capillaries; post capillary _____
- 10. Type of vessel which starts as blind sac
- 11. The location of the nucleus within the cardiac muscle cell
- 12. The node which is the pacemaker
- 15. Origin of stimulus for heart contraction
- 16. The largest artery in the body
- 17. Another term for elastic arteries; ____ artery
- 18. Largest lymphatic vessel; ______ duct
- 19. Lining of the heart
- 21. Structures which prevent backflow of blood
- 24. Specialized fibers for conduction
- 26. Connection between an artery and a vein; bypassing the capillary bed
- 28. The middle tunic; tunica ____
- 29. Large, leaky capillaries
- 33. Threadlike structures which attach to the
- 35. Atria which receives deoxygenated blood
- 36. Using the classification for arteries; the largest arteries are ____ arteries
- 41. ______