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Question
Biology
A cardiac impulse leads to the contraction and relaxation of the heart. Which of the following arrow diagrams correct) / represents the flow of cardiac impulse in the heart?
Q. A cardiac impulse leads to the contraction and relaxation of the heart. Which of the following arrow diagrams correct) / represents the flow of cardiac impulse in the heart?
1649
209
Body Fluids and Circulation
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A
SA node
∈
/
contraction of auricle
∈
/
AV node
∈
/
bundle of HIS
∈
/
purkinje fibres
∈
/
contraction of ventricle
75%
B
SA node
∈
/
AV node
∈
/
contraction of auricle
∈
/
purkinje fibres
∈
/
bundle of HIS
∈
/
contraction of ventricle
25%
C
SA node
∈
/
contraction of auricle
∈
/
bundle of HIS
∈
/
AV node
∈
/
purkinje fibres
∈
/
contraction of ventricles
0%
D
SA node
∈
/
AV node
∈
/
bundle of HIS
∈
/
purkinje fibres
∈
/
contraction of auricle
∈
/
contraction of ventricle
0%
Solution:
Correct answer is (a) SA node
∈
/
contraction of auricle
∈
/
AV node
∈
/
bundle of HIS
∈
/
purkinje fibres
∈
/
contraction of ventricle