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  • The diagram given below illustrates the process of nerve impulse conduction. Choose the option that correctly identifies the components represented in the diagram. <img alt="" src="https:

The diagram given below illustrates the process of nerve impulse conduction. Choose the option that correctly identifies the components represented in the diagram.

Option: 1

[A] – Site (a) is showing repolarisation.


Option: 2

[B] – Site (c) is showing hyperpolarisation.


Option: 3

[A] & [B] – Site (a) is showing depolarization.


Option: 4

[B] – Site (a) is in a refractory period.


Answers (1)

best_answer

When it is mentioned that "Site (a) is in a refractory period," it means that the specific location referred to as (a) is currently in a temporary phase where it cannot generate another electrical signal or muscle contraction. This period allows the site to recover and reset its ability to respond to further stimulation.

During the refractory period, the neuron or muscle fiber is in a recovery phase, restoring its ion concentration gradients and resetting its excitability. This period ensures that the neuron or muscle fiber is not continuously stimulated or contracted, allowing for proper signaling and coordination of electrical impulses. Hence, the correct answer is option 4. 

Posted by

Ajit Kumar Dubey

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