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Question 9678
NEET Biology · Hard

Body Fluids and Circulation: Pacemaker MCQ

Solve this quality-checked NEET multiple-choice question, then review the correct answer and explanation.

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PacemakerHardQuestion 9678

Question

If SA node fails, heartbeat may continue but usually at a slower rate because:

  1. A
    Other parts of conduction system can take over pacemaking
    Correct
  2. B
    The heart has no muscle
  3. C
    RBCs become pacemakers
  4. D
    All valves open permanently

Correct answer

Other parts of conduction system can take over pacemaking

Explanation

Secondary pacemaker regions can generate impulses, though usually more slowly.

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