Read the following statements.Statement I: Purkinje fibres of the heart generate maximum number of action potentials than SAN.Statement II: They are specialised cardiac muscle fibres.In the light of given statements, choose the correct answer from the options given below.

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Read the following statements.

Statement I: Purkinje fibres of the heart generate maximum number of action potentials than SAN.

Statement II: They are specialised cardiac muscle fibres.

In the light of given statements, choose the correct answer from the options given below.

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Both statements A and B are true.

Statement A is false but statement B is true.

Both statements A and B are false.

Statement A is true but statement B is false.

answer is C.

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Detailed Solution

Statement I is false. The SAN is the primary pacemaker of the heart, initiating the electrical impulses that regulate the heartbeat. It produces the maximum action potentials.

Statement II is true. Purkinje fibers are indeed modified cardiac muscle fibers. They are specialised for rapid conduction of electrical impulses and are located in the inner ventricular walls of the heart.

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