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 | 22nd 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 | 22nd Apr, 2018, 06:01: PM