Where is the Subendocardial conducting network?

The Purkinje fibers (Purkyne tissue or subendocardial branches) are located in the inner ventricular walls of the heart, just beneath the endocardium in a space called the subendocardium.

What is another name for the Subendocardial conducting network?

The subendocardial conducting network, or Purkinje fibers, are additional myocardial conducting fibers that spread the impulse to the myocardial contractile cells in the ventricles.

How Conductioning system of the heart is formed?

The SA node starts the sequence by causing the atrial muscles to contract. That’s why doctors sometimes call it the anatomical pacemaker. Next, the signal travels to the AV node, through the bundle of HIS, down the bundle branches, and through the Purkinje fibers, causing the ventricles to contract.

What does Subendocardial mean?

Medical Definition of subendocardial : situated or occurring beneath the endocardium or between the endocardium and myocardium subendocardial blood loss.

Where is the SA and AV node located?

An electrical stimulus is generated by the sinus node (also called the sinoatrial node, or SA node). This is a small mass of specialized tissue located in the right upper chamber (atria) of the heart.

What is Purkinje network?

The Purkinje network is a specialized conduction system within the heart that ensures the proper activation of the ventricles to produce effective contraction.

Where are Purkinje Fibres?

The purkinje fibres are found in the sub-endocardium. They are larger than cardiac muscle cells, but have fewer myofibrils, lots of glycogen and mitochondria, and no T-tubules.

What are Purkinje Fibres?

Purkinje fibers or Purkinje cardiomyocytes are part of the whole complex of the cardiac conduction system, which is today classified as specific heart muscle tissue responsible for the generation of the heart impulses.

What is the AV bundle also called?

atrioventricular trunk, bundle of His, truncus atrioventricularis.

What is the difference between a transmural and subendocardial infarction?

Discussion. The results of this study are that subendocardial infarction is associated with a significant reduction in longitudinal S and SR, whereas radial and circumferential function are relatively preserved. In contrast, transmural infarction is associated with a reduction of both long-axis and short-axis function.