Function of bane is str arrangement of our body muscle and sec is protections. Protections is primari function of bone.
Protect your organs and so you can move or else you will be a pile of skin and organs.
1.Bones provides the strength and architecture to body
2.They are the main place to attachment of muscles and few visceral organs
3. They provide a safety environment for internal organs (brain.. In skull.) (lungs and heart in rib cage)
4. They has the calcium which is main requirement for the impulse trans mission.
Not only these there are lot of indirect uses of bones are there in our body.
for support, to protect internal organs, for movement, as a source of calcium and phosporus, red blood cells are made in the bone marrow