Why does the adult vertebral column have fewer vertebrae than that of a newborn?

There are 5 groups in the vertebral column. In order they are called

1) Cervical

2) Thoracic

3) Lumbar

4) Sacrum

5) Coccyx

The 4th group contain 5 bones and once you are in the adult phase, roughly at about 26 years, the 5 bones fuses into one bone which shrink the number of bones the vertebra column have but but does not lose in size.

not a 100 % sure hope this helps

loris malaguzzi was the founder of reggio emilia’s educational philosophy and together with the comune and many local administrators he participated in the birth and building of reggio emilia’s network of municipal preschools (3-6) and infant-toddler centres (0-3).

no. i had a handful this morning