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Question : Whenelectricwavesreach from S . A nodetonodeit slows down in heart.This slwoingdown is essential as ……..

Answer»

It gives resttoauricles
It makesstrong contractingof rightauricle
It helpsventriclein receivingmorebloodfrom AURICLES .
Helpsrightauricleto receivebloodfrom VENA CAVA .

Answer :C


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