Across
- 1. All blood vessels contain what cells?
- 4. thick tissue around each valve
- 5. contraction/emptying of atria and ventricles
- 6. carry blood from the heart
- 10. how atriums pass information to one another
- 11. Right AV valve has what shape?
- 14. Side of the heart with more muscle
- 15. Smallest vessels that transport blood
- 16. rhythmic electrical activity in the heart
- 17. reason for no fatigue in action potentials
- 18. Biggest blood vessel
- 19. what happens to ventricles in the QRS complex
- 20. valve activity during contractions and relaxation
- 23. Node closest to superior vena cava
- 24. Mechanically hold muscle cells together
- 25. Valve that doesn't close properly
Down
- 2. Fluid similar to arterial blood
- 3. Stroke volume and Cardiac output can be used to find
- 7. net pressure is negative
- 8. What muscles support Chordae Tendineae?
- 9. What does AV stand for?
- 12. Terminal fibers that expand in the ventricular myocardium
- 13. Channels that permit inward Na2+ influx
- 17. 99% of cells don't have this ability
- 21. Middle layer of the heart
- 22. pulmonary semilunar valve gets blood from what ventricle