Multiple choice

Which of the following is/are called as the pacemaker(s) of heart?

  1. SA node

  2. Bundle of His

  3. Purkinje fibres

  4. AV node

  5. Pulmonary vein
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A Correct answer
Explanation

Sinoatrial or SA node is the site of generation of rhythmic impulse. It is called as pacemaker of the heart.

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