Across
- 3. valve set separating ventricles and arteries
- 5. allow ions to flow between adjacent cardiac muscle fibers
- 7. valve set separating atria and ventricles
- 9. deliver blood to the myocardium
- 13. SL valve on right side of heart
- 14. receiving chambers
- 17. squishy CT skeleton of the myocardium
- 18. contractile tissue of the heart
- 19. SL valve on left side of heart
- 21. fibers that spilt to surround each ventricle
- 22. AV valve on left side of heart
- 24. prevent backflow
- 26. type of cells called "pacemaker cells"
- 27. AV valve on right side of heart
- 28. remove blood from the myocardium
- 29. fibers in the superior interventricular septum
- 30. create a tight bond between adjacent cardiac muscle fibers
- 31. muscles in atrial myocardium
Down
- 1. attach AV valves to heart wall in ventricles
- 2. name for thin fibers that innervate the ventricular myocardium
- 4. ligament connecting aorta and pulmonary artery in adults
- 6. hole connecting aorta and pulmonary artery in babies
- 8. serous membrane surrounding heart
- 10. simple squamous lining of heart chambers
- 11. depression in adults between atria
- 12. stingy CT connecting valve flaps to papillary muscles
- 15. node embedded between atria and ventricles
- 16. hole in babies between atria
- 20. connect adjacent cardiac muscle fibers
- 23. distributing chambers
- 25. node embedded in right atrium