Rate of fire for purkenjie fibers....

EMS123

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What is the rate of fire for the purkenjie fibers?
 

RocketMedic

Californian, Lost in Texas
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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.
 

Handsome Robb

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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.

Not a bad explanation at all! Super simple but it does make sense.
 

Desette

Forum Probie
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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.

That was an awesome explanation
 

RocketMedic

Californian, Lost in Texas
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Thanks, feel free to pass it on.
 

NYMedic828

Forum Deputy Chief
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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.

Lol I like that. Well written.
 
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