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Question

Choose the correct pathway of the transmission of impulses in the heart
  1. AV node SA node Bundle of His Purkinje fibres
  2. SA node AV node Bundle of His Purkinje fibres
  3. SA node Bundle of His AV node purkinje fibres
  4. AV node Bundle of His SA node Purkinje fibres

A
SA node AV node Bundle of His Purkinje fibres
B
AV node SA node Bundle of His Purkinje fibres
C
AV node Bundle of His SA node Purkinje fibres
D
SA node Bundle of His AV node purkinje fibres
Solution
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1. The sinoatrial node (SA node) generates the electric impulse that begins the heart beat.
2. The excitation wave travels throughout the muscle of each atrium, causing it to contract.
3. The atrioventricular node (AV node) is stimulated. The relatively slower conduction through this node allows time for the atria to contract and complete the filling of the ventricles.
4. The excitation wave travels rapidly through the bundle of His and then throughout the ventricular walls by means of the bundle branches and Purkinje fibers.

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Similar Questions
Q1

The cardiac impulse is initiated and conducted further upto ventricle. The correct sequence of conduction of impulse is
(a)SA NodeAV NodePurkinje fiberAV Bundle(b)SA NodePurkinje fiberAV NodeAV Bundle(c)SA NodeAV NodeAV BundlePurkinje fiber(d)SA NodePurkinje fiberAV BundleAV Node

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Q2
Mark the odd one in each of the following series:
Purkinje fibres, AV bundle, AV valve, SA node.

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Q3
Go through the statements
Statement (I): The AV node and the bundle of His constitute the only electrical link between the atria and the ventricles.
Statement (II): The Bundle of His is a bundle of electrical nodes which allow the ventricles to contract.
Statement (III): The bundle of His is a group of fibres that carry electrical impulses through the centre of the heart
Statement (IV) : The bundle of His is located in the proximal intraventricular septum
How many of the above statements are correct?
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Q4
The purpose of the AV node is to _______ and the purpose of the Purkinje fibers is to _______.
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Q5
Is there any other name that you can give for this set- " Purkinje fibres,A V node,S A node."
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