For each heartbeat, electrical signals travel through the conduction pathway of your heart. It starts when your sinoatrial (SA) node creates an excitation signal.

Nov 6, 2025 · The pumping action of the heart muscle is controlled by an spontaneous electrical impulse, conducted around the heart by specialised cells. This article will look at the key …

The cardiac conduction system (CCS, also called the electrical conduction system of the heart) [1] transmits the signals generated by the sinoatrial node – the heart 's pacemaker, to cause the …

May 10, 2020 · The cardiac conduction system involves the spread of electrical activity from the sinoatrial node, to the atrioventricular node, down the bundle of His and along the Purkinje fibres.

The electrical stimulus travels down through the conduction pathways and causes the heart's ventricles to contract and pump out blood. The 2 upper chambers of the heart (atria) are …

The human heart has a similar need for a power source and also uses electricity. Thankfully we don't need to plug ourselves in to the mains, the heart is able to create it's own electrical …

May 5, 2025 · This group of muscle cells is called the cardiac conduction system. The main parts of the system are the SA node, AV node, bundle of HIS, bundle branches, and Purkinje fibers.

Right: The table shows conduction velocities and intrinsic pacemaker rates of various structures within the cardiac conduction pathway. The structures are listed in the order of activation …

Normally, the only pathway available for action potentials to enter the ventricles is through a specialized region of cells (atrioventricular node, or AV node) located in the inferior-posterior …

Jul 21, 2025 · The heart’s ability to pump blood is governed by an internal electrical system known as the cardiac conduction system. This network of specialized cells generates and transmits …