The function of the left bundle branch is to carry an action potential from the atrioventricular bundle (bundle of His) to the Purkinje fibres of the left ventricle.
The heart's conduction system is responsible for transmitting electrical signals that stimulate the heart to contract in a synchronized manner. These signals travel along specialized pathways that include the bundle branches. There are two bundle branches: the left bundle branch and the right bundle branch. These branches are responsible for supplying the left and right ventricles, respectively, with electrical impulses to initiate contraction.
The left bundle branch is further divided into two major branches, the anterior and posterior branches. The left bundle branch plays a crucial role in transmitting the electrical signal from the atrioventricular (AV) node to the Purkinje fibers of the left ventricle, which triggers contraction of the left ventricle.
The right bundle branch, on the other hand, is responsible for transmitting the electrical signal to the right ventricle to initiate contraction. The two bundle branches work together to ensure that the ventricles contract in a coordinated manner, which is essential for maintaining an efficient and effective pumping action of the heart.
