Podcast
Questions and Answers
Which node generates impulses about 75 times per minute?
Which node generates impulses about 75 times per minute?
- Atrioventricular node (AV node)
- Purkinje fibers/plexus
- Sinoatrial node (SA node) (correct)
- Right bundle branch (RBB)
Which node delays the impulse approximately 0.1 second?
Which node delays the impulse approximately 0.1 second?
- Sinoatrial node (SA node)
- Atrioventricular bundle (AV bundle)
- Atrioventricular node (AV node) (correct)
- Left bundle branch (LBB)
Which pathway carries the impulse toward the apex of the heart?
Which pathway carries the impulse toward the apex of the heart?
- Anterior internodal pathway
- Bundle branches (correct)
- Posterior internodal pathway
- Middle internodal pathway
Which fibers carry the impulse to the heart apex and ventricular walls?
Which fibers carry the impulse to the heart apex and ventricular walls?
What is the normal heart rate range for the Sinoatrial (SA) node?
What is the normal heart rate range for the Sinoatrial (SA) node?
What is the normal heart rate range for the Atrioventricular (AV) node?
What is the normal heart rate range for the Atrioventricular (AV) node?
Which node takes over as the pacemaker if the SA node is damaged?
Which node takes over as the pacemaker if the SA node is damaged?
What is the function of the AV node?
What is the function of the AV node?
Which fibers carry the signal to the ventricle muscle cells?
Which fibers carry the signal to the ventricle muscle cells?
Which artery supplies the AV node in 80% of people?
Which artery supplies the AV node in 80% of people?
How many smaller tracts does the left bundle divide into near its origin?
How many smaller tracts does the left bundle divide into near its origin?
What is the function of the subendocardial branches of the AV bundle?
What is the function of the subendocardial branches of the AV bundle?
Where is the sinu-atrial (SA) node located?
Where is the sinu-atrial (SA) node located?
How many times per minute does the SA node give off an impulse in most people most of the time?
How many times per minute does the SA node give off an impulse in most people most of the time?
Which artery usually supplies the SA node?
Which artery usually supplies the SA node?
Where is the atrioventricular (AV) node located?
Where is the atrioventricular (AV) node located?
Which node distributes the signal to the ventricles through the AV bundle?
Which node distributes the signal to the ventricles through the AV bundle?
