What is SA Node and AV Node? Where Are They Located? What Are Their Functions?

AV Node

Atrioventricular node, or AV node. It is a collection of cells that can be found in the middle of the heart, between the ventricles and atria.

Location:

The centre of the atrioventricular septum is the exact place.

Function:

Ventricular contractions result from it.

The SA node sends signals to the AV node.

Before allowing the signal to pass through to the ventricles, the AV node acts as a gate to slow the electrical current. By delaying the stimulation of the ventricles, the atria are given time to close completely. The electrical current passes through the AV node and then proceeds along specialised fibres that are woven into the walls of the lower chamber of the heart to reach the ventricles.

Summary:-

What is SA Node and AV Node? Where Are They Located? What Are Their Functions?

A key component of the cardiac conduction system that aids in controlling heart rate is the SA node. In the middle of the heart, between the ventricles and atria, is a cell cluster known as the AV node.

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