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Across
  1. 2. The muscular tissue of the heart that contracts to pump blood.
  2. 3. conduction: (2 words) The process by which electrical signals travel through the heart, coordinating the contraction and relaxation of its chambers.
  3. 6. generator: (2 words) The main component of the pacemaker that generates electrical impulses and controls the pacing of the heart.
  4. 8. therapy: (2 words) The use of an electric cardiac pacemaker to regulate and control the heart's rhythm and rate.
  5. 9. fibrillation: (2 words) A common heart rhythm disorder characterized by irregular and rapid electrical activity in the atria of the heart.
  6. 11. An abnormal heart rhythm characterized by irregular or abnormal electrical activity.
  7. 12. To surgically insert or place a device or substance into the body, in this case, an electric cardiac pacemaker.
  8. 15. A conductor through which electric current is passed to or from the body to measure or stimulate electrical activity.
  9. 16. tachycardia: (2 words) A rapid heartbeat originating in the ventricles of the heart, often associated with abnormal electrical signals.
  10. 19. node: (2 words) A cluster of specialized cells in the heart that conducts electrical impulses from the atria to the ventricles.
  11. 20. A slower-than-normal heart rate, usually defined as less than 60 beats per minute.
Down
  1. 1. (2 words) Referring to the energy source of the pacemaker, which is typically a small battery that powers the device.
  2. 4. Electrocardiogram, a test that records the electrical activity of the heart using electrodes placed on the skin.
  3. 5. block: (2 words) A condition in which the electrical signals in the heart are delayed or blocked, causing an abnormal heart rhythm.
  4. 7. The branch of medicine that deals with the study and treatment of the heart and its diseases.
  5. 10. wires: (2 words) Thin insulated wires that connect the pacemaker device to the heart to deliver electrical signals.
  6. 13. rate: (2 words) The number of times the heart beats per minute, indicating the speed at which the heart is pumping blood.
  7. 14. The organ responsible for pumping blood throughout the body.
  8. 17. stimulation: (2 words) The application of controlled electrical impulses to excite or activate specific tissues or nerves.
  9. 18. pacemaker: (2 words) A small electronic device implanted in the body to regulate and control the heart's electrical activity.