Skip to main content

HUMAN BLOOD CIRCULATION

THE CIRCULATORY   SYSTEM  consists  of  the  heart  and  blood   vessels,which  together   maintain  a   continuous   flow   of  blood   around  the  body .The   heart  pumps    oxygen-rich   blood   from  the   lungs  to  all   parts  of  the    body  through  a  network   of  tubes  called  Arteries, and  smaller   branches  called  arterioles.Blood   returns  to  the  heart  via  small  vessels   called   venules ,which  lead  in  turn  into  larger  tubes   called  veins.Arterioles  and  venules  are  linked   by  a  network   of  tiny  vessels called   capillaries;where  the  exchange  of  oxygen   and  carbon   dioxide    between  blood  and   body  cells  takes  place.
Blood   has   four   main  components ;red  blood  cells ,white blood  cells,platelets,  and  liquid  plasma.
BLOOD  CIRCULATION






 

Comments

Post a Comment

Popular posts from this blog

REVOLUTIONS-INDUSTRIAL AND INFORMATION

INDUSTRIAL   REVOLUTION  Starts   in   Europe  particularly  in  England  in  eighteen  century.It   changed  the  whole   of Europe   and   England 's  economy.During  this  period    New    machines  are  invented  in   England   to  speed  up  the    spinning  of  wool  and  cotton .At  first  they  were  powered  by  water  wheels  but  later steam  engines   are  developed.Iron   become  cheaper  and  stronger  as  Iron  making  techniques   improved.Canals  are  dug  to  carry   coal   from  the  mines and  to  transport  finished  goods.After ...
Post a Comment
Read more

WEB SITES TO ENTERTAIN YOU

If  you   get  bored   from  the   web  viewing  the  same  stuff    over  and  over  again -social media  ,blogs,   news  etc  then  you  certainly   need  some  thing  different  that  can  soothe   your  soul and  give  you some  kind of entertainment  then  here  are some  sites  that  can  solve  your  purpose. Bored Panda   Bored Panda is the place you want to be when you want to discover interesting and visually appealing content. It's a blog that publishes regular updates on the coolest finds in travel, photography, illustration, animals, DIY, technology, design and all sorts of other great categories. You can also create an account to vote posts up or down. Brain Pickings .     ...
Post a Comment
Read more

KEY BOARD SHORT CUTS

While   surfing  the Web,  these commands  could  help  you  and  are absolutely worth learning. By making repetitive motions faster, web surfing becomes so easy  and    pleasant! The following shortcuts can  be   work with desktop versions of Chrome, Firefox, and IE. CTRL-T to launch a new browser tab page. Tabbed pages are very useful: they let you open multiple web pages simultaneously without the same memory load as a full browser window.  Simply press CTRL-T to launch a new tab. Related: use CTRL-Page Up and CTRL-Page Down to navigate between the tabs.  CTRL-Enter to type 'www.' and '.com' Once you ...
Post a Comment
Read more