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 a pair of 12 of thoracic vertebrae in the human body. Some variations exist, as in all of nature, but that is most commonly agreed upon number.   Th â¦ e vertebrae of the spine are divided into sections (cervical, thoracic, lumbar, sacral and the coccyx).