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.
Transitional vertebrae are abnormally formed vertebral bones that display the characteristics of two different types of vertebrae. The human spine is made up of 33 bones called vertebrae, with the spinal cord running through the middle.