Home › CBSE Class 11 (Science) › Biology › Body Fluids and Circulation › Which node acts as the pacemaker of the heart?
Which node acts as the pacemaker of the heart?
AAV node tissue
BSA node tissue
CPurkinje fibre
DHis bundle fibre
Answer & Solution
Correct answer: B. SA node tissue
The SAN generates the most action potentials per minute, so it sets the rhythm of the heart.
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