a person who is skilled in relating stories and anecdotes interestingly. Origin of raconteur. 1820-1830. 1820-30; < French, equivalent to racont(er) to tell (Old French r(e)- re- + aconter to tell, account) + -eur -eur.
1 An abnormal curve of the lumbar spine is lordosis, also called sway back. 2  An abnormal curve of the thoracic spine is kyphosis, also called hunchback.  An abnormal curve from side-to-side is called scoliosis.
The twelve thoracic vertebrae are numbered T1 to T12. The range of motion in the thoracic spine is limited. Lumbar (low back) - the main function of the lumbar spine is to bear the weight of the body. The five lumbar vertebrae are numbered L1 to L5.