2313 Exam 2

1. All of the following are components of the cardiac conduction system except:

2. Which coronoary artery supplies oxygenated blood to the sinoatrial node and the atrioventricular node?

3. Which of the following components of the cardiac conductions system is considered the pacemaker of the heart?

4. The sinoatrial node is located closest to the:

5. The sinoatrial node normally fires electrical impulses at a rate of:

6. The bundle has an automatic firing rate of between:

7. The pirkinje fibers have an automatic firing rate between:

8. Which of the following components of the cardiac conduction system delivers the electrical impulse from the sinoatrial node to the atria?

9. Which of the following deliver the electrical impulse from the sinoatrial node to the left atrium?

10. Which of the following components of the cardiac conduction system deliever the electrical impulse to the bundle of His after a 0.10 second delay?

11. The atrioventricular node is located at the floor of the:

12. Which of the following componenets of the cardiac conduction system deliver the elctrical impulse from the atrioventricular node to the bundle branches?

13. Which of the following components of the cardiac conduction system delivers the electrical impulse from the bundle of His to the ventricles?

14. Which of the following components of the cardiac conduction system delivers the electrical impulse from the bundle branches to the ventricular walls?

15. Which of the following terms means the heart can begin and maintain rhythmic activity without the aid of the nervous system?

16. Which of the following terms means that cardiac muscle can accept and respond to electrical impulses:

17. Which of the following terms means that a cardiac cell is able to transfer an electrical impuses to a neighboring cardiac cell?

18. which of the following terms means that the heart responds to an electrical impulse by contracting?