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ECG and Voltmeter

Human Anatomy, Physiology, and Medicine. Anything human!

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ECG and Voltmeter

Postby bbs_r » Mon Aug 08, 2005 4:51 pm

Hi everyone, I just got a stupid question here, I hope you could give me a hand:

I just found that when measuring the action potential of a neuron, we use microelectrodes which penetrates carefully into the membrane(according to the textbooks). I'm just curious that why ECGs "electrodes" can be attached on the skin and still got a signal? Isn't it the human flesh and skin are good resistors I think?

Finally, I apologise for my bad english, cheers.
bbs_r
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