Identify the labelled parts of heart-s conduction system as depicted in the image- -i-Purkinjefibres-ii-Bundle of His- -iii- SA node- -iv- AV node-i-SA node- -ii- AV node- -iii- Bundle of His- -iv- Purkinje fibres-i-Bundle of His- -ii- Purkinjefibres- -iii- AV node- -iv- SA node-i-SA node- -ii- Purkinjefibres-iii- AV node- -iv- Bundle of His-

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Conduction in Heart

Identify the ...

Question

Identify the labelled parts of heart’s conduction system as depicted in the image.

(i)SA node, (ii) Purkinjefibres,(iii) AV node, (iv) Bundle of His

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(i)Bundle of His, (ii) Purkinjefibres, (iii) AV node, (iv) SA node

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(i)Purkinjefibres,(ii)Bundle of His, (iii) SA node, (iv) AV node

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(i)SA node, (ii) AV node, (iii) Bundle of His, (iv) Purkinje fibres

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Solution

The correct option is B
(i)Bundle of His, (ii) Purkinjefibres, (iii) AV node, (iv) SA node

The labelled parts in the image in order are Bundle of HIS, Purkinjefibres, AV node and SA node respectively. Electrical impulse travels from the SA node to the AV node from which it is transmitted through the bundle of HIS to the Purkinjefibres.

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Similar questions

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

the natural pacesetter of heart is

i. SA node iii. AV valve

ii. AV node iv. Semilunar valve

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

Q. Which of the following statements are correct?
I. Bundle of His originates from the SA-node.
II. SA- node is situated in the wall of the right atrium.
III. Atrial contraction stimulates the AV-node.
IV. AV-node sets up the cardiac impulses 72 times per minute.

Mark the odd one in each of the following series
(i) Purkinje fibers, AV bundle, AV valve, SA node.
(ii) Mitral valve, tricuspid valve, semilunar valve, venous valve.
(iii) Thoracic duct, aorta, pulmonary vein, vena cava.

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