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.
There are 12 thoracic vertebra in human skleletal Twelve. The adult body has 7 cervical vertebra, 12 thoracic vertebrae, and 5 lumbar vertebrae. It can be remembered as: breakfast at 7am, lunch at 12noon, and dinner at 5pm. There are 12 thoracic vertebrae.