Skip to main content

HUMAN-BODY-RESPIRATORY SYSTEM-LUNGS

OUR  BODY  HAS  A   BLOOD    TRANSPORT  SYSTEM.It   supplies    the   oxygen    needed  by  the   body cells  and  carries   off their    carbon-Di-oxide  waste.Lungs  work  very  hard  .Every  day  we  take.  about  23,000  breaths.Lungs   are  connected  to  a  wind pipe  called   trachea   .Each  comprises   many  branching   tubes   called    bronchioles.The  air  inhaled    by  us  passes   via  the trachea  into   the  lungs.Blood   in  the  lungs  collects   oxygen  and  takes  it  around  the  body.This  air  is  warmed  to  body  temperature and  saturated  with  water  vapour.When   we  breathe out ,our   lungs   pushed  used  air   out  through   our  nose   or  mouth.Sometimes  ,  we  inhale  foreign particles with  air   that  are  trapped  and  expelled  by   coughing  .The   mechanical   work   required   to ventilate   the  lungs,  is done  by  respratory  muscles.The  Larynx   is  a  part  of  the  respiratory   tract,it  is  the  organ  of   pho-nation.Its    function  is  to   raise    airway  pressure  during  sneezing   and  coughing.
FACTS-
  • At   rest  ,the  body  takes  in and breathe  out    about  10  liters   of air   each  minute.
  • The  right lung  is slightly   larger  than  the  left.
  • Hairs  in  the  nose   help  to  clean  the  air we  breathe,as  well   as  in  warming  it.
  • LUNGS






  • The  highest   recorded   "sneeze  speed"   is  105  km  per   hour.

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