The definition of asinine is to be silly, stupid or ridiculous. An example of asinine is a foolish prank played on a friend.
In humans, there are twelve thoracic vertebrae and they are intermediate in size between the cervical and lumbar vertebrae; they increase in size going towards the lumbar vertebrae, with the lower ones being a lot larger than the upper.
ANSWER:   There are 12 thoracic vertebrae in the human spine. They are numbered T1 - T12.   There are 33 vertebrae total:   Cervical: 7   Thoracic: 12   Lumba â¦ r: 5   Sacral: 5   Coccygeal: 4   See the related links for more information.