Explain irlt.
Q). What is the function of label X in the given diagram?

(a) It speeds up the impulse transmission.
(b) It provides electrical insulation.
(c) It conducts impulse towards the nerve cell body.
(d) It is the functional unit of nerve.

Dear student,      
Please find below the solution to the asked query                                                              

​X denotes Node of Ranvier. It speeds up the transmission of electrical impulses. Hence, option (a) is correct. 

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