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Question
Biology
SA node is called pace maker of the heart. Why?
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Q. SA node is called pace maker of the heart. Why?
Body Fluids and Circulation
A
It can change contractile activity generated by AV node
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B
It delays the transmission of impulse between the atria and ventricles
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C
It gets stimulated when it receives neural signal
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D
It initiates and maintains the rhythmic contractile activity of heart
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Solution:
Correct answer is (d) It initiates and maintains the rhythmic contractile activity of heart