Possible improvements to the function of the cranium?

Question

I have recently come across this question in an anatomy class I am taking, and would like to know your opinions.

The cranium encases the brain, central nervous system. Why is it an effective protective barrier, and do you think there could be any way to improve on the design to increase protection?

If the design was utilized, would there be any downsides or areas comprimised by the change?

Your opinions are *greatly* appreciated.

Answer 1

Cranium needs that size and shape to protect brain and membranes. Craniostenosis is the only condition in which cranium can be increased in size artificially leaving suture areas gaping .