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Heart

The given fig...

Question

The given figure illustrates a section through the human heart.Which labelled part represents the site for the generation of action potential in human heart?

A

A

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B

B

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C

C

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D

D

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Solution

The correct option is A A
The SA node is present in the right atrium of heart which contains pacemaker cells. It is responsible for the generation of action potential.
Thus, the correct answer is 'A.'

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