Person has stable HR, not more than 40 bpm. What is the pacemaker of the heart rhythm in this person?

Answer options

1. His bundle
2. Purkinye fibers
3. Branches of His bundle
4. Atrioventricular node
5. Sinoatrial node

Correct answer

Atrioventricular node

This educational archive is provided by KROKEXAM and is not an official testing authority publication.