Question

The bones of a child are more easily healed than those of an adult because they have flexible and less brittle bones due to

• A. More quantity of calcium phosphate and less or organic substances
• B. More quantity of organic substances and less of calcium phosphate
• C. More quantity of calcium phosphate and more of organic substances
• D. Less quantity of calcium phosphate and less of organic substances

Answer 1

The correct option is B More quantity of organic substances and less of calcium phosphate

The primary tissue of bone is mostly made up of the mineral calcium phosphate (gives bones their rigidity) and collagen, an elastic protein, which improves fracture resistance. The organic part of matrix is mainly composed of Type I collagen. Children's bone have more organic part and less mineral part. So, the healing is faster in case of fractures in children.

So, the correct answer is 'More quantity of organic substances and less of calcium phosphate'