NEET Biology question
SAN generates an action potential which stimulates both the ...A... to undergo a simultaneous contraction called ...B.... This increases the flow of the blood into the ventricles by about ...C... percentage. Choose the correct option for A, B and C.
Answer: (A)
Solution
The SA node's impulse spreads over both atria, causing their simultaneous contraction known as atrial systole, which pushes
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