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Question

How bones are made?


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Solution

Bones:

  1. Bones are mainly made of specialized cells known as osteoblasts.
  2. They secrete osteoids (unmineralized bone matrix) into the membrane of columns of connective tissue known as trabeculae to make it hard and brittle.
  3. Hence, the process of bone formation is known as ossification.
  4. The calcification (calcium deposition) of osteoids leads to bone formation.
  5. Bones are mainly made from cartilages.
  6. At birth, most of the skeleton system is made up of bones, hence, gradually the cartilage skeleton hardens to form the bony skeleton.
  7. The osteoblasts form the bone matrix and also specialize in the mineralization of the bone cells.
  8. The process of conversion of cartilage to hard brittle continues throughout life.
  9. This is how bones are made.

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