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What is the function of the heart Pacemaker?

What is the function of the heart Pacemaker?

  • (A) It decreases the heart beat
  • (B) It regulates the heart beat
  • (C) It increases the heart beat
  • (D) It accelerates blood supply to the heart
The heart’s rhythm begins with its pacemaker, whether natural or artificial in the form of an electronic device. It is the heart’s conductor in the cardiac cycle. It sends out electrical signals which ripple through the heart’s muscle tissue, causing the heart to contract and pump the blood. Its main function is to regulate the heart’s rate and ensure the rhythm is regular. It does this by “regulating” the heart’s beats when the heart is beating too slowly (bradycardia) or when the heart’s beats are irregular (arrhythmia).
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Related MCQs:

 ‘NATO’ is an abbreviation of:

March 18, 2026 No Comments
  • (A) North Atlantic Treaty Organization
  • (B) Non-Aligned Treaty Organization
  • (C) Non-Aligned Trading Organization
  • (D) North American Transport Organization

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