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

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Solution

There are small groups of specialized neuromuscular cells in the myocardium, which initiate and conduct impulses resulting in coordinated and synchronized contraction of the heart muscles. This system is made up of cardiac muscles. It's components are :
1) SA node.
2) AV node.
3) AV bundle, bundle branches, and Purkinje fibres.

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The cardiac impulse is initiated and conducted further upto ventricle. The correct sequence of conduction of impulse is
$\begin{matrix} (a) & S A N o d e & A V N o d e & P u r k i n j e f i b e r & A V B u n d l e (b) & S A N o d e & P u r k i n j e f i b e r & A V N o d e & A V B u n d l e (c) & S A N o d e & A V N o d e & A V B u n d l e & P u r k i n j e f i b e r (d) & S A N o d e & P u r k i n j e f i b e r & A V B u n d l e & A V N o d e \end{matrix}$

Give these structure of the conduction system of the heart :
1. It is Atrioventricular bundle
2. AV node
3. Bundle branches
4. Purkinje fibres

5. SA node
Choose the arrangement that lists the structures in an order of an action potential passes through them.

In the diagrammatic presentation of heart given below, mark and label. SAN, AVN, AV bundles, bundle of his and Prukinje fibres.

Q. The number of SA node and AV node in humans are

Q. The purpose of the AV node is to _______ and the purpose of the Purkinje fibers is to _______.

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

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