Conduction System of the Heart

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Biology

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5 Terms

1
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Sinoatrial Node

  • in right atrium

  • pacemaker of the heart

  • triggers the atria to contract and passes the impulse to the AV node

2
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Atrievtricular Node

  • causes delay allowing the atria to empty blood and close bicuspid and tricuspid valve

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Atrioventricular Bundle

  • in septum

  • aka bundle of his

  • sends impulse to bundle branches

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right and left bundle branches

  • right bundle is right ventricle

  • left bundle is left ventricle

  • sends impulse to purkinje fibers

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Purkinje fibers

  • spread in muscle tissue

  • carries impulse to ventricles and cause them to contract