Purkinje Fibers

Purkinje Fibers

Purkinje fibers are branches of the bundle branches located under the endocardium and deep in the myocardium of the ventricles of the heart.

The bundle of His is the conduction system of the heart, responsible for the excitation and contraction of the ventricles. Legs extend from the trunk of the His bundle, which further branch into small Purkinje fibers. These fibers form a dense network covering the ventricular myocardium from the inside.

Purkinje fibers conduct electrical impulses very quickly, thereby ensuring simultaneous contraction of the entire ventricular myocardium. Thus, Purkinje fibers play an important role in the functioning of the heart, participating in the formation and propagation of excitation throughout the ventricles. Disturbances in the Purkinje system can lead to various arrhythmias.

Purkinje fibers, or Rigkinje, are branched branches of the bundle of His, which are located under the endocardium and in the thickness of the myocardium of the ventricles of the heart. These fibers are an important part of the heart's electrical system, which regulates its contractile activity.

The bundle of His consists of specialized cells that ensure rapid propagation of electrical impulses throughout the heart. Purkinje fibers, in turn, are a continuation of the legs of this bundle and ensure its distribution throughout the entire ventricular myocardium.

The role of Purkinje Fibers in cardiac activity is to ensure synchronous contraction of the ventricles. When the electrical impulse reaches the Purkinje Fibers, it spreads throughout the ventricular myocardium, causing them to contract. This allows the heart to pump blood efficiently throughout the body.

In case of disturbances in the electrical system of the heart, for example, with arrhythmias, the role of Purkinje Fibers becomes even more important. Some forms of arrhythmias are associated with disturbances in the functioning of these fibers and their excitability. In such cases, various treatment methods, such as ablation, can be used to correct the functioning of the heart's electrical system.

Thus, Purkinje Fibers are an important component of the electrical system of the heart, ensuring synchronous contraction of the ventricles and efficient functioning of the heart muscle. Understanding their role in cardiac activity helps to develop treatments for various heart diseases associated with disturbances in the electrical system of the heart.

Introduction Purkine fibers are branched stalks from the greater fascicle of his (BH) that extend into the heart. These fibers act as receptors for electrical stimulation of the heart. Understanding the function of Purkinana fibers is essential to better understand heart rhythm and their impact on health.

What are Purkiye fibers? The venous myocardium is a kind of thickened part of the heart and ensures that the cavities of the heart are filled with blood. It has its own innervation, including the so-called Perkins-Pourquet fibers, which connect the branches of the superficial bundle of His with the large cavity of the inferior vena cava.

Functions of Purkinene Fibers The importance of Purkinene fibers is due to the fact that they are an important component of the interaction between the vagus nerve signal and the autonomic nervous system in terms of regulating heart rate. Some scientists believe that Purkn-Barov fibers are responsible for the shift in the automatic mode of the cardiac cycle between the atria and ventricles. In a sense, Perkin-Baron fibers are active in controlling heart rate at the heart tube-ventricular junction.

When heart disease occurs One of the main problems is that with different types of cardiac arrhythmia, there is a shift in the frequency of cardiac cycles. This is due to loss or disruption of the connection between the Perkna and Baron fibers. This loss of communication can also be caused by other causes, such as infections, heart attacks, Alzheimer's disease, certain types of cancer, and even idiopathic arrhythmias. If there is a problem with the Purkin fibers, the arrhythmia can lead to failures in the coordination of contractions of both chambers of the heart