Bones.

BONE is the main part of the body.Bone is resorbed and formed continuously throughout life.Without bone all vertebrates have no skeleton and cannot move or shift to anywhere.
How a bones look outside?..........................................................................

.....................................................................................................................

Old bones are dead, dry and brittle. But in the body, bones are very much alive. They have their own nerves and blood vessels, and they do various jobs
A typical bone has an outer layer of hard or compact bone, which is very strong, dense and tough. Inside this is a layer of spongy bone, which is like honeycomb, lighter and slightly flexible. In the middle of some bones is jelly-like bone marrow, where new cells are constantly being produced for the blood.

What to do the fracture ?

A SIMPLE FRACTURE does not pierce through the skin. If it is not cared for properly, it could become a compound fracture.

If a fracture is suspected...
1. check for swelling around the affected area
2. there may be discoloration of the skin
If the victim complains of tenderness and pain in the area or says that he felt or heard a bone snap, see a doctor immediately.

3. What do old bones look like?

.................................................................

................................................................

4.What is inside the bone? Write in the picture.

5.What must you eat to have strong bones?

.................................................................

................................................................