The protective covering of the brain is called
Skull
The brain is present in a structure called skull. It is like a box of bones. This structure has immovable joints which protect the brain from any kind of damage.
The ribs partially enclose and protect the chest cavity containing vital organs - the heart and the lungs.
The backbone is a group of bones that work together to protect the spinal cord. The spinal cord runs from the brain to the base of your spine.