Biology, asked by jasiRah, 1 year ago

working of heart in details

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Answered by swapnilsinha1
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Answered by Monika2002
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here is your answer 
WORKING OF HEART 

cardiac cycle:
1) imaginary relaxation of artia and ventricles
2) blood flows into atria
3)contraction of atria and flow of blood into ventricles
4)contration of venticales and valves get closed and blood flows into arteries

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