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.
The_human_spine_has_7_cervical,_12_Thoracic_and_5_Lumbar_vertebrae_as_well_as_5_(fused)_in_the_sacrum_and_another_4_(fused)_in_the_coccyx_which_totals_33. The human spine has 7 cervical, 12 Thoracic and 5 Lumbar vertebrae as well as 5 (fused) in the sacrum and another 4 (fused) in the coccyx which totals 33.lmost all humans are born with 33 separate vertebrae. By adulthood, most have only 24. This is due to the fusion of the vertebrae in certain parts of the spine during normal development.