Which sequence places the components of the electrical activity of the heart in the proper order?

a. AV node, Purkinje fibres, SA node
b. Purkinje fibres, AV node, SA node
c. SA node, AV node, Purkinje fibres
d. AV node, SA node, Purkinje fibres


Ans: c. SA node, AV node, Purkinje fibres

Biology & Microbiology

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