Final answer:
Bachmann's bundle, also known as the interatrial tract, is a specialized pathway in the heart that conducts electrical impulses directly from the right atrium to the left atrium. Its primary function is to ensure synchronized contraction of both atria, facilitating efficient blood flow into the ventricles.
Step-by-step explanation:
Bachmann's bundle, also known as the interatrial tract, is a specialized pathway in the heart that conducts electrical impulses directly from the right atrium to the left atrium. It consists of a group of specialized conducting cells that transmit the impulse from the sinoatrial (SA) node in the right atrium to the left atrium.
The primary function of Bachmann's bundle is to ensure synchronized contraction of both atria. By bypassing the normal cell-by-cell pathway through the contractile cells of the myocardium, Bachmann's bundle allows for rapid transmission of the electrical impulse from the right atrium to the left atrium. This helps to coordinate the contraction of both atria, ensuring efficient blood flow into the ventricles.