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Q)

Regarding Nodal musculature of Heart - choose the incorrect statement :


( A ) AV Node is called the pacemaker
( B ) the number of action potentials that could be generated in a minute vary at different parts of the nodal system
( C ) nodal musculature has the ability to generate action potentials without any external stimuli, i.e., it is autoexcitable.
( D ) SA Node is responsible for initiating and maintaining the rhythmic contractile activity of the heart

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