Skip to main content

NOSE MOUTH AND THROAT

WITH   EVERY  BREATH   ,air  passes  through  the  nasal   cavity..down   the   pharynx(throat),larynx("voice box"  ),and  trachea(wind pipe)  to  the  lungs.The  nasal   cavity   warms  the  and  moistens  air   ,and   the  tiny  layers  in  the  lining   protect   the  airway    against   the  damage  by  foreign  bodies.During  swallowing  ,  the  tongue  moves  up  and  back,the  larynx  rise,the  epiglottis  closes  off  the    entrance to  the trachea,  and  the  soft palate  separates    the  nasal  cavity  from  the  pharynx.Saliva,
secreted  from   three  pairs  of    salivary   glands,lubricates  food  to  make  swallowing   easier,it  also   begin  the   chemical  break down  of   food ,and  help  to  produce  taste.The  senses  of  taste   an d   smell     are  closely  linked .Both  depend  on   the    detection of   dissolved    molecules  by   sensory  receptors  in  the  olfactory
nerve endings  of  the  nose  and  in  the   taste  buds  of  the   tongue



e: x-large;">











Comments

Popular posts from this blog

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 ...

THE BEATLES -ENGLISH ROCK BAND

The Beatles were an English rock band formed in Liverpool in 1960. The group, whose best-known lineup comprised John Lennon, Paul McCartney, George Harrison and Ringo Starr, are regarded as the most influential band of all time.   The Beatles    were  from    Liverpool, United Kingdom.   In September of 1962 The Beatles recorded their first hit Love Me Do, which charted in UK, and reached the top of the US singles chart. London became their new home since 1963. ... Their October 1963 performance at the London Palladium made them famous in Great Britain and initiated the Beatlemania in the UK.   The most popular Beatle.   Paul McCartney ranked highest, at 35 percent; following by John Lennon (29%), Ringo Starr (11%), and George Harrison (8%). However, there is a gender gap: men favored John, while women preferred Paul.   The Beatles' first record "Love Me Do" was released on October 5, 1962. It was a mode...

Bacteria

  Bacteria   are   the   most   plentiful   living  organism   on  the  Earth.They   are  the  most  smallest    organism ,each  consisting   of  a   simple ,  single  cell.A   few   types  of  bacteria ,called  germs ,cause  diseases    in  humans .But   most  bacteria     are   harmless,  some  are   very  useful.They   used  in  making  drugs   and  foods. Bacteria    reproduce   by  binary   fission(splitting  in  two). Reproduction    by     division   means  that  bacteria  can   multiply  very  quickly,if  the  conditions...