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Question

What is the correct order of nerve impulse conduction through nerve fibre?



A

[repolarisation] => [resting] => [depolarisation]

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B

[resting] => [depolarisation] => [repolarisation] 

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C

[resting] => [repolarisation] => [depolarisation]

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D

[repolarisation] => [depolarisation]

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Solution

The correct option is D

[resting] => [depolarisation] => [repolarisation] 


The correct order of nerve impulse conduction is [resting] => [depolarisation] => [repolarisation] 

An impulse begins when a neuron is stimulated by another neuron or by a stimulus in the environment. The cell membranes begin to change the flow of ions and a reversal of charges, the action potential, results. When the activation of nerve take place, there is a sudden change in the voltage across the wall of the axon, caused by the movement of ions in and out of the neuron. The propagation follows: [resting] => [depolarisation] => [repolarisation] 


Biology

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