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What happens when the pacemaker is non functional ?
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What happens when the pacemaker is non functional ?

A
only the auricles will contract rhythmically

B
the cardiac muslces do not contract in a coordinated manner rhythmically

C
only ventricles will contract rhythmically

D
auricles and ventricles contract simultaneously

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Updated on: Mar 8, 2023

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SA- node is known as the natural pacemaker of heart. It is responsible for initiation of heart beat which is then passed through Bundle of His and Purkinje fibres to reach all parts of the heart. Thus, if it becomes non functional, there is irregularity in heart rhythm and creating failure of the atrial impulses received by ventricle.
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Question Text
What happens when the pacemaker is non functional ?
Updated OnMar 8, 2023
TopicBody Fluids and Circulation
SubjectBiology
ClassClass 11
Answer TypeText solution:1 Video solution: 1
Upvotes152
Avg. Video Duration10 min