Multiple choice

Implanting of artificial pacemakers in humans takes place due to defects in the ______________.

  1. tricuspid valve

  2. mitral valve

  3. Purkinjee fibres

  4. AV node

  5. SA node
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

The fibres of SA (Sinu-atrial) node express the ability of self excitation and control the rate of the entire heart beat. Hence, they are also called pacemakers. So, artificial pace makers are used when the SA node gets defected.

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