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CBSE Class 11-science Answered

Rate of conduction of impulse in conducting system of heart is fastest in :-

a) Bundle of His b) Atrial muscles
c) A.V. Node d) Purkinje's fibres

 

Asked by dipanshusingla029 | 22 Apr, 2018, 04:44: PM
Expert Answer
(d) Purkinje fibers conduct the impulses at high velocity (about 4 m/sec) throughout the ventricles.The rapid conduction through the Purkinje fibers ensures that different parts of ventricles are excited almost simultaneously that greatly increases the efficiency of heart as a pump.
Answered by Sivanand Patnaik | 22 Apr, 2018, 06:01: PM
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