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Physics Chemistry

CSS :: Circulatory System Physiology


  Which of these is time taken respectively in contraction and relaxation of atria in man?
[A]. 0.1 second and 0.7 second[B]. 0.3 second and 0.5 second
[C]. 0.2 second and 0.6 second[D]. 0.4 second and 0.4 second

Answer: Option A


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