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CIRCULATORY SYSTEM-HUMAN BODY.



THE   CIRCULATORY   SYSTEM   consists  of   the  heart and  blood   vessels  ,which  together  maintain  a  continuous   flow  of  the  blood    around   the  body .The     heart   pumps   oxygen-rich     blood   from  the  lungs  to    all   parts   of  the   body   through  a  net work  of   Vitamins & Dietary Supplements   called  arteries ,  and  smaller    branches   called    arterioles  .Blood   returns  to  the   heart   via   small   vessels   venules  , which  lead  in  turn    into  larger  tubes  called   veins.Artiriotes   and   venules   are   linked   by  a  network   of  tiny   vessels   called   capillaries,  where  the  exchange   of  oxygen    and  carbon-Di-oxide   between   blood  and  body  cells  takes  place.
 Blood   has  four   main components-
   red  blood  cells ,White  blood   cells,platelets,  and  liquid  plasma
 CIRCULATORY  SYSTEM








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