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aorta

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aorta


  2  definitions  found 
 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
 
  Aorta  \A*or"ta\,  n.  [NL.,  fr  Gr  ?,  fr  ?  to  lift,  heave.] 
  (Anat.) 
  The  great  artery  which  carries  the  blood  from  the  heart  to 
  all  parts  of  the  body  except  the  lungs;  the  main  trunk  of  the 
  arterial  system. 
 
  Note:  In  fishes  and  the  early  stages  of  all  higher 
  vertebrates  the  aorta  divides  near  its  origin  into 
  several  branches  (the  aortic  arches)  which  pass  in 
  pairs  round  the  [oe]sophagus  and  unite  to  form  the 
  systemic  aorta.  One  or  more  pairs  of  these  arches 
  persist  in  amphibia  and  reptiles,  but  only  one  arch  in 
  birds  and  mammals,  this  being  on  the  right  side  in  the 
  former,  and  on  the  left  in  the  latter. 
 
  From  WordNet  r  1.6  [wn]: 
 
  aorta 
  n  :  the  large  trunk  artery  that  carries  blood  from  the  left 
  ventricle  of  the  heart  to  branch  arteries 




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