How is fetal patella differ from adult patella?

The fetal skeleton does not have a patella. It does not grow in until the child is approximately five or six years old.

The ossific centers appear in the intervals between the articular depressions for the coastal cartilages, in the following order: in the manubrium and first piece of the body, during the sixth month;...

May be absent in the fetus; if present it is unossifiedQuite a bit softer and smaller in the fetus. The kneecap develops throughout childhood and into mid-teens.

Patella is the scientific name for the Kneecap

helps you move because if you never had a patella your would not move