Suggest why an artificial pacemaker can be used to treat AF.

An artificial pacemaker would generate regular electrical impulses in the atria.

The regular electical impulses from the pacemaker are stronger than the irregular impulses from the SAN, therefore the ventricles would recieve regular electrical stimulation.

This would normalise their contraction and ensure effective cardiac output at a regular rate. 

AH

Related Human Biology A Level answers

All answers ▸

Outline the events that occur within the heart, which cause blood to move around the body.


What are the three main differences between a molecule of DNA and RNA?


Why is thermoregulation important?


Describe what an action potential is and how is it transmitted. Refer to the action of stimuli and neurons in your answer.