Across
- 1. conduction system – electrical conduction system consisting of specialized cardiac cells that initiate and propagate electrical impulses throughout the heart
- 6. – an internal or external electronic device that sends electrical impulses to the heart in order to set the heart rhythm or regulate the heart rate
- 9. bundle and bundle branches – located in interventricular septum; functions to spread electrical impulse down septum
- 10. – two lower heart chambers that pump blood to the body and the lungs
- 12. node – located in right atrial wall; functions to initiate electrical impulse and set the pace of the heart; aka. pacemaker
- 14. – small blood vessels where nutrient and gaseous exchange occurs
- 16. – blood vessels that transport blood toward the heart
- 17. system – system of structures to enclose and convey the transport medium in one direction through the system from one exchange surface to another
- 18. – blood vessels that transport blood away from the heart
- 19. – ability to move materials within the body
- 20. fibers – located in ventricular myocardium; functions to spread electrical impulse throughout ventricles
Down
- 2. node – located in interatrial septum; functions to delay electrical impulse from sinoatrial node to allow the completion of atrial contraction
- 3. cycle – muscular events of the heart associated with the flow of blood throughout the heart during one heart beat
- 4. – ability of cardiac cells to generate the action potential at a certain rate without any external stimulus
- 5. (EKG, ECG) – graphical representation of cardiac electrical activity
- 7. – two upper heart chambers that receive blood from the body and the lungs
- 8. – an internal or external electronic device that applies an electric shock to restore the rhythm of a heart in fibrillation
- 11. – swelling due to excessive interstitial fluid
- 13. – external electrical shock used to restore normal heart rhythm
- 15. – weakness in wall of major artery