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What is meant by beats? Discuss graphica...

What is meant by beats? Discuss graphical method of beats.

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Knowledge Check

  • Heart beat increases -

    A
    On stimulation of sympathetic nerves
    B
    On stimulation of vagus nerve (para sympathetic nerve)
    C
    By adrenaline secreted by adrenal medulla
    D
    Both a and c
  • to beat a retreat

    A
    to withdraw in defeat or humiliation
    B
    to withdraw after scoring a victory
    C
    to march back after a ceremonious parade
    D
    to run away in fear
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