evilmonkey35 evilmonkey35
  • 13-09-2019
  • Medicine
contestada

The AV node is the secondary pacemaker of the heart with a rate of 40 to 60 beats per minute.
a. True
b. False

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TenishaTon TenishaTon
  • 17-09-2019

Answer: True

Explanation:

At 40-60 beats per minute the cells of Artrioventicular node normally discharge and at this rate it is known as secondary pacemaker.

The electrical conducting system after this secondary pacemaker is known as Bundle of His. The right and left branches along with the Purkinje Fibres will produce action potential at the rate of 30 to 40 per minutes.

The failure of SA and AV node both fails then the cells becomes pacemaker.

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