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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