Rate of fire for purkenjie fibers....

EMS123

EMS123

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What is the rate of fire for the purkenjie fibers?
 
Thank you!
 
The thing is that the Purkinje fibers are not coordinated across the heart. Some parts may beat above 40, some within that range, and others not at all. Rhythms with wide QRS complexes are highly suggestive of Purkinje use as the "pacers".

Think of your heart as a military unit or company. The manager (1SG) is the SA node, and wants 60-100 beats/min. Your AV node is the supervisor or platoon sergeant- he makes stuff happen. He's a bit lazier, typically 40-60. That being said, he'll take over from the manager if the manager doesn't show up, and he'll impose reality if the manager wants unrealistic things like 300 beats/min. He can only work down though- only the ventricles.
The team leaders are the purkinje fibers. They typically work at 20-40 beats per minute, but can only really control the cells connected to them, not eachother- hence a lack of electrical or mechanical coordination.
The individual cells are the new privates. They may or may not work and the rate's anyone's guess.
 
Rocketmedic40 said:
The thing is that the Purkinje fibers are not coordinated across the heart. Some parts may beat above 40, some within that range, and others not at all. Rhythms with wide QRS complexes are highly suggestive of Purkinje use as the "pacers".

Think of your heart as a military unit or company. The manager (1SG) is the SA node, and wants 60-100 beats/min. Your AV node is the supervisor or platoon sergeant- he makes stuff happen. He's a bit lazier, typically 40-60. That being said, he'll take over from the manager if the manager doesn't show up, and he'll impose reality if the manager wants unrealistic things like 300 beats/min. He can only work down though- only the ventricles.
The team leaders are the purkinje fibers. They typically work at 20-40 beats per minute, but can only really control the cells connected to them, not eachother- hence a lack of electrical or mechanical coordination.
The individual cells are the new privates. They may or may not work and the rate's anyone's guess.
Click to expand...

Not a bad explanation at all! Super simple but it does make sense.
 
Rocketmedic40 said:
The thing is that the Purkinje fibers are not coordinated across the heart. Some parts may beat above 40, some within that range, and others not at all. Rhythms with wide QRS complexes are highly suggestive of Purkinje use as the "pacers".

Think of your heart as a military unit or company. The manager (1SG) is the SA node, and wants 60-100 beats/min. Your AV node is the supervisor or platoon sergeant- he makes stuff happen. He's a bit lazier, typically 40-60. That being said, he'll take over from the manager if the manager doesn't show up, and he'll impose reality if the manager wants unrealistic things like 300 beats/min. He can only work down though- only the ventricles.
The team leaders are the purkinje fibers. They typically work at 20-40 beats per minute, but can only really control the cells connected to them, not eachother- hence a lack of electrical or mechanical coordination.
The individual cells are the new privates. They may or may not work and the rate's anyone's guess.
Click to expand...

That was an awesome explanation
 
Thanks, feel free to pass it on.
 
Rocketmedic40 said:
The thing is that the Purkinje fibers are not coordinated across the heart. Some parts may beat above 40, some within that range, and others not at all. Rhythms with wide QRS complexes are highly suggestive of Purkinje use as the "pacers".

Think of your heart as a military unit or company. The manager (1SG) is the SA node, and wants 60-100 beats/min. Your AV node is the supervisor or platoon sergeant- he makes stuff happen. He's a bit lazier, typically 40-60. That being said, he'll take over from the manager if the manager doesn't show up, and he'll impose reality if the manager wants unrealistic things like 300 beats/min. He can only work down though- only the ventricles.
The team leaders are the purkinje fibers. They typically work at 20-40 beats per minute, but can only really control the cells connected to them, not eachother- hence a lack of electrical or mechanical coordination.
The individual cells are the new privates. They may or may not work and the rate's anyone's guess.
Click to expand...

Lol I like that. Well written.
 
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