The Heart's Conduction System

• ↑
  • Heart

The Heart's Conduction System

• Sinoatrial Node

  • Region in right atrium that sends electricity to contract the cardiac muscles in the Heart.
  • It moves through the Internodal Pathways to squeeze from the top.
    • This will push blood down to the ventricles.
  • The sinoatrial node is a region in the right atrium that sends electricity to contract the cardiac muscles in the heart. It sends those electrical signals further down through the Internodal Pathways to squeeze blood from the top of the heart to the bottom.

• Atrioventricular Node

  • Pass electricity from atria to ventricles from Bundle of His.
    • Region in septum that seperates into two branches called Purkinje Fibres which contract the heart from the bottom up.
      • This pushes the blood up, towards the pulmonary arteries.
  • The Atrioventricular node passes electricity from the atria to the ventricles via the Bundle of His. A region in the septum seperates this bundle and turns them into bundle branches which then uses Purkinje Fibres to contract the cardiac muscles from the bottom to the top.