Multiple choice

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

  1. SA node

  2. AV node

  3. Purkinje fibres

  4. Papillary muscles

  5. Atrioventricular bundle
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The SA (sinoatrial) node is a section of the nodal tissue that is located in the upper wall of the right atrium. The SA node is also referred to as the pacemaker of the heart.

Keep practicing — related questions