What role does the right atrium play in the conduction system of the heart?
The right atrium is integral to the heart's conduction system. The electrical impulse initiated by the SA node spreads through the atrial myocardium to the atrioventricular (AV) node, located at the junction between the atria and ventricles. This conduction pathway ensures that the atria contract before the ventricles, allowing efficient blood flow from the atria to the ventricles.
