how does the skull protect our brain?
The brain is protected by the bones of the skull and by a covering of three thin membranes called meninges. The brain is also cushioned and protected by cerebrospinal fluid. ... It runs down from the brain through a canal in the center of the bones of the spine. These bones protect the spinal cord.
Skull is made up of bone which are too hard.
It is also made up of calcium which made them much hard.
Brain is secured by skull because brain is inside skull due to which, it is totally safe .
Hope it helps you :)