Question: Where are the group of cells that control the natural resting heart rate found?
Answer: sinoatrial node
Disambiguated annotations:
qaPairs: question: Where are the group of  muscle cells that control the natural resting heart rate found?
answer: atria
Right Atrium
question: Where are the cells that control the resting heart rate found if the SA node is damaged?
answer: Atrioventricular node
AV node
question: Where are the cells that control the resting heart rate found?
answer: SA node
sinoatrial node