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What effect does diameter of conduction fiber have on conduction of the heart?

April 26, 2017conduction diameter fiber heart

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What effect does diameter of conduction fiber have on conduction of the heart?

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The greater the diameter of the fiber that much greater the heartrate will be. Because at the synaptic junction wider surface area will release more neurotransmitter materials which in turn will provoke greater action potential and thus increased heartrate.