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What is heart beat?

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What is heart beat?

    • Posted by Jaswant Prabhakar 7 years, 9 months ago

    CBSE > Class 07 > Science
    • 2 answers

    Manisha Charan 7 years, 9 months ago

    one copmlete contraction and relaxtion of heart is called heartbeat

    1Thank You

    Pratyush Pare 7 years, 9 months ago

    Muscles in the walls of the chambers of heart contract and relx rhythmicaly .This rhythmic contraction is followed by its relaxation constitute a heart beat

    1Thank You

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