Human Heart. need help!

[Trino Cularoid]

i have a suspect that there is a some kind of a sparkplug design that triggers the muscles and make the muscles squeeze.

I guess so. Electromagnetic fields certainly can interfere. Interestingly, the field strength is not as important as the quality (frequency/resonance, etc.).
For example, you can be surrounded by relatively strong fields (50/60 Hz wiring) all day long without much effect. But there are much weaker fields used in alternative medicine (acupuncture, etc.) that can have strong effects.
Another theory I heard is that (simplified) the gravity of the stars influences the electromagnetic activity of our sun which in turn affects our bodies because our DNA is coiled up in conductive loops (and therefore magnetizable). These loops are much more sensitive to very weak but tunes fields than to strong ones. That would be the idea behind astrology.

Better tune your spark plug to a friendly frequency! 

[mscoffman]

@Tito

There are a groups of cyclically connected nerve cells
called neurons in the heart muscles themselves that
cause the heart to beat. The heart beat is propagated
like a wave through heart tissue due to the lack of instantaneous
signalling. It is very much like a bistable multivibrator in
electrical circuits. As in all things biological, it has redundant
parts and chemical intermediate messangers (proteins) serve
to communicate information from other organs that bias
the environment of these neurons so as to provide open
loop control. These things are evolutionarily neat but the
sum total makes biological systems some of the most complex
systems dealt with by the human mind.

One thing that can happen is that a chaotic overspeed
process can develop that cause the heart muscle to
continuously quiver rather than beat. This is when
medical personnel need to apply cardiac defibrillation, a
high voltage capacitive discharge to heart, to terminate
the chaotic processes so the regular beating process can
regain control of it.

How these biological systems that uses 10's of millivolts as
nerve data transfer mechanism can possibly survive something
like a lightning strike is totally amazing and well beyond current
electronics technology used in computers ect.

:S:MarkSCoffman

[ramset]

                                                 

[Gearhead]

Thanks Trino

You know what, i have a suspect that there is a some kind of a sparkplug design that triggers the muscles and make the muscles squeeze. 

well just a thought 

Heart muscle cells branch.  It is as if they were a woven basket.  There are also nerve fibers running through the heart right and left. 
The sparkplug is a small area called the SA node.  Please see:

http://en.wikipedia.org/wiki/Sinoatrial_node

Then it continues through the AV node see:

http://en.wikipedia.org/wiki/Atrioventricular_node

The conduction of the wave of heart contraction runs down the nerves and through the branches of muscle fiber.

[Tito L. Oracion]

Heart muscle cells branch.  It is as if they were a woven basket.  There are also nerve fibers running through the heart right and left. 
The sparkplug is a small area called the SA node.  Please see:

http://en.wikipedia.org/wiki/Sinoatrial_node

Then it continues through the AV node see:

http://en.wikipedia.org/wiki/Atrioventricular_node

The conduction of the wave of heart contraction runs down the nerves and through the branches of muscle fiber.

good info! thank you very very much!