Our skeletal system is made up of bones. It plays an
important role in the proper functioning and movement of our body. Muscles
attached to the bones support them in movement and in staying upright. Bony
structures like ribcage, skull and pelvic girdle protect our sensitive organs
from jerks and damages, the bone marrow stores minerals and lipids. Red and
white blood cells are produced in the cavity of many bones. Bone matrix, the
inter-cellular substance of bone; consist of mineral salts such as calcium,
calcium phosphate and calcium carbonate and collagen fibers, ground substance
which holds the minerals together. All these together make bones strong and
little bit flexible.
A constant dynamic process of degeneration and regeneration
of the bones continue in our body. Osteoblasts are the cells which on maturity
forms Osteocytes and are responsible for the formation of bones. Accidentally, when there is a fracture
in a bone, osteoblasts release minerals which are carried by blood to the site.
It helps in the regeneration of bones. If the blood supply is continuous and
intact fracture will heal very soon. Healing of fracture also depends on the
body's own healing power and health of the individual.
The bone
surface becomes active after the fracture and forms a collar of cartilage and
bone around the break. Osteoblasts,
cartilages, and spongy tissues help in closing the internal pan of the fractured
bone. Later they develop into new bone matrix, which strengthens the fractured
area. After sometime the bone gets repaired and the healed area in the bone
becomes stronger than the original bone.
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