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Questions and Answers
What is the function of the AV node?
What is the function of the AV node?
- Regulates blood flow to the ventricles
- Transmits signals from the ventricles to the atria
- Receives electrical signals slightly before passing them to the ventricles (correct)
- Generates electrical signals for the ventricles
What is the short bundle of fibers that splits into the right and left?
What is the short bundle of fibers that splits into the right and left?
- SA node
- AV node
- Purkinje fibers
- Bundle of His (correct)
What carries the electrical signals to the right and left ventricles?
What carries the electrical signals to the right and left ventricles?
- Bundle branches (correct)
- Purkinje fibers
- AV node
- SA node
What do Purkinje fibers do?
What do Purkinje fibers do?
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What is the Cardiac pacemaker also known as?
What is the Cardiac pacemaker also known as?
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Study Notes
Cardiac Conduction System
- A network of specialized cells that generate and transmit electrical signals to coordinate the contraction of the heart's four chambers.
SA Node
- Located in the right atrium.
- Considered the heart's natural pacemaker.
- Generates electrical impulses at a regular rate.
Heart Rate
- Normal heart rate: 60 to 100 beats per minute.
AV Node
- Located between the atria and ventricles.
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