How Do the bones work?
Do you know how many bones are there in a human body? A baby is born with 300 bones, approx. 100 bones more than a full-grown adult. So what happens as you age, do you lose some bones in the process of growing? No… there are several tiny bones in a baby which fuse together to form bigger and mature bones. Bones go through various changes as human grow. 206 bones in an adult give shape to the body. In addition to protecting our organs they help us move.
TThe bones of new born babies are very soft because they are made up of flexible substance called Cartilage. As they grow, cartilage is eventually replaced by bone with the help of calcium. This replacement process is known as ossification and it is usually completed by mid-twenties. This is the time when your bones are as big and as strong as they will ever be. As you age, your bones don’t grow bigger, but they can heal and repair themselves, for example in the case of fractures.
Bones are alive; they grow and change with time.
There are four main layers of a bone: