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The cardiac conduction system is a network of specialized tissue that generates and conducts electrical impulses to coordinate the heartbeat.
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These impulses travel through the heart, causing the atria and ventricles to contract in a rhythmic and coordinated manner, ensuring efficient blood pumping.
The key components of the cardiac conduction system include:
Sinoatrial (SA) node:
The heart's natural pacemaker, located in the right atrium, initiates the electrical impulse.
Atrioventricular (AV) node:
Receives the impulse from the SA node and relays it to the ventricles after a brief delay, allowing for proper atrial contraction.
Bundle of His:
A pathway that conducts the impulse from the AV node to the ventricles.
Bundle branches:
The bundle of His divides into right and left bundle branches, which carry the impulse to the respective ventricles.
Purkinje fibers:
These fibers rapidly distribute the impulse throughout the ventricular muscle, causing them to contract.
Disruptions in the cardiac conduction system can lead to various heart rhythm abnormalities, such as arrhythmias, which may require medical intervention, including pacemaker implantation.
This is for informational purposes only. For medical advice or diagnosis, consult a professional. AI responses may include mistakes. Learn more
Your heart's conduction system is the network of nodes (groups of cells that can be either nerve or muscle tissue), specialized cells and electrical signals ...
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May 8, 2024 · A network of specialized muscle cells is found in the heart's walls. These muscle cells send signals to the rest of the heart muscle causing a contraction.
Apr 24, 2023 · The cardiac conduction system is a collection of nodes and specialised conduction cells that initiate and co-ordinate contraction of the heart ...
The conduction system sends electrical signals throughout the heart that determine the timing of the heartbeat and cause the heart to beat in a coordinated, ...
The heart's pumping action is regulated by an electrical conduction system that coordinates the contraction of the various chambers of the heart.
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The conduction system consists of specialized heart muscle cells, situated within the myocardium. ... There is a skeleton of fibrous tissue that surrounds the ...
Nov 1, 2009 · The cardiac conduction system is composed of the sinoatrial node (SAN), the atrioventicular node (AVN), the HIS bundle, the right and left bundle branches, the ...