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.

2, 5, 3, 1, 4

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5, 2, 1, 3, 4

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2, 5, 1, 3, 4

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5, 2, 4, 1, 3

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Solution

The correct option is B $5, 2, 1, 3, 4$
The correct series is
5.SA node
2.AV node
1.It is atrioventricular bundle
3.Bundle branches
4. Purkinje fibers
So, the correct answer is '5,2,1,3,4'

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

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

Q. Choose the correct statement(s) about SA node.
I. Located at lateral wall of the right atrium.
II. It initiates the rhythmic contractile activity of the heart and maintains it.
III It is called pace keeper of the heart.
IV. It directly passes on the impulses to the Purkinje fibres.

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

Define the following terms and give their location?

(i) Purkinje fibre

(ii) Bundle of His

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Give these structure of the conduction system of the heart :1. It is Atrioventricular bundle2. AV node3. Bundle branches4. Purkinje fibres 5. SA nodeChoose the arrangement that lists the structures in an order of an action potential passes through them.

The correct option is B 5,2,1,3,4The correct series is 5.SA node2.AV node1.It is atrioventricular bundle3.Bundle branches4. Purkinje fibersSo, the correct answer is '5,2,1,3,4'

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.

The correct option is B $5, 2, 1, 3, 4$
The correct series is
5.SA node
2.AV node
1.It is atrioventricular bundle
3.Bundle branches
4. Purkinje fibers
So, the correct answer is '5,2,1,3,4'