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1. Sinoatrial node
2. Atrioventricular node
3. Atrioventricular bundle
4. Right and left bundle branches
5. Purkinje fibers
This answer may be acceptable for high school, but in university you'll have to go further as such:
1. Sinoatrial node
2. Posterior, anterior, lateral internodal pathway + Bachmann's bundle
3. Penetrating Atrioventircular node
4. Distal Atrioventricular node
5. Left and right bundle branches of Purkinje fibers (or: left and right Bundles of His)
6. Purkinje fibers
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∙ 14y ago
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SAN >internodal pathway> AVN> AV/Hiss bundle> bundle branches> purkinje fibres
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sa nodes - av bundle- left bundle branches- purkinje fibers . hope this helps
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Why must substances be touching in order for conduction occur?
Because, conduction is the transfer of heat flow fro one object to another. So that means they must touch to make conduction occur.
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Two objects must be touching and it has to transfer heat
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Why must substance be touching in order for conduction to occur?
Because, conduction is the transfer of heat flow fro one object to another. So that means they must touch to make conduction occur.
Why does the heart have the Bundle of His and the Purkinje fibers?
The bundle of His and the Purkinje fibres are part of the conduction system of the heart. In order to pump blood around the body, the heart muscle must contract (atria first to fill the ventricles, then ventricles contract to send the blood around the body.) The conduction system starts in the sinoatrial node (SA node) which is also known as the hearts natural pacemaker and is located at the top of the right atrium. The impulse is then sent to the atrioventricular node (AV node) located by the junction between the atria and ventricles. The next part of the conduction system is the bundle of His which sends the impulse from the atria to the ventricles. The purkinje fibres then spread through the ventricles. As the impulse passes through each part of the conduction system, that part of the heart is excited and the heart muscle contracts, which gives the pumping action of the heart.
