Healthy living

Electrical system

The electrical system of the heart controls the muscle contractions which cause your heart to pump blood around your body.

The heart’s pumping is controlled by special fibres that send electrical signals to the heart chambers.

These signals cause the heart muscles in your upper chambers (atria) and lower chambers (ventricles) to contract and release.

This creates the pumping action which moves blood through your body.

Where to get help

  • Always dial triple zero (000) to call an ambulance in a medical emergency
  • See your doctor
  • Ring healthdirect on 1800 022 222
  • Phone the Heart Foundation’s Health Information Service on 1300 362 787

This information provided by

Heart Foundation logo


Cardiovascular Health Network

Heart Foundation

This publication is provided for education and information purposes only. It is not a substitute for professional medical care. Information about a therapy, service, product or treatment does not imply endorsement and is not intended to replace advice from your healthcare professional. Readers should note that over time currency and completeness of the information may change. All users should seek advice from a qualified healthcare professional for a diagnosis and answers to their medical questions.

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