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

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 …

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 …

There, impulses are slowed down for a very short period, then continue down the conduction pathway via the bundle of His into the ventricles. The bundle of His divides into right and left …

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.

Normal conduction during sinus rhythm occurs along the fast pathway, but higher heart rates and/or premature beats are often conducted through the slow pathway, since the fast pathway …

Aug 17, 2023 · Learn in this article the conduction system of the heart, its parts (SA node, Purkinje fibers etc) and its functions. Learn them now at Kenhub!

Unlike skeletal muscle, cardiac muscle doesn’t need a motor neuron to stimulate contraction. Once the SA node fires, the impulse spreads throughout the atria and causes them to …

Aug 23, 2025 · The heart’s rhythmic beating is governed by a precise electrical conduction system, depicted step-by-step in this informative diagram.

Jul 21, 2025 · From the SA node, the electrical signal spreads across both atria, causing them to contract and push blood into the lower chambers, the ventricles. The signal then converges at …