not very
because skull protects it, skull is a hard bone to protect our sensitive parts like, brain, face.
Well a tiger skull is pretty hard.
really really hard
VERY
because it is hard.
skull or cranium
Skull is bone (hard), eyes are soft tissue and decay away.
it is really hard
i think if you have a bump on the back of your skull, you are getting a tumor.
The brain is protected from bruising by the hard skull through cerebrospinal fluid, which acts as a cushioning pad.
just get the quest for it but get help if to hard
To protect the brain from injury.