A) SA node\[\to \]AV node\[\to \]Bundle of His\[\to \] Purkinje fibres
B) AV node \[\to \] Bundle of His \[\to \] SA node \[\to \] Purkinje fibres
C) SA node \[\to \] Purkinje fibres \[\to \] AV node \[\to \] Bundle of His
D) Purkinje fibres\[\to \]AV node\[\to \]SA node\[\to \] Bundle of His
Correct Answer: A
Solution :
The heart is formed of cardiac muscles which have the property of excitability and conductivity. When the cardiac muscles are stimulated by a specific stimulus these got excited and initiate the waves (depolarization) of electric potential called cardiac impulse. Cardiac impulse is propagated through SA node \[\to \] AV node \[\to \]Bundle of His \[\to \] Purkinje fibres. China rose?Hibiscus rosa sinensis?Family Malvaceae. Floral formula: \[Br,\oplus ,Ep{{i}_{3-9}}{{K}_{(5)}}{{C}_{5}}{{A}_{\infty }}{{G}_{(5-\infty )}}\]
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