Question

In children, the bones are more flexible and brittle because their bones have

• A. Large quantity of salts and little organic substances
• B. Large quantity of organic substances and little salts
• C. Well developed Haversian system
• D. Large number of osteoblasts

Answer 1

The correct option is B Large quantity of organic substances and little salts

Bones are made up of calcium, protein collagen, phosphorus, sodium and other minerals. Calcium makes the bones hard to support body weight. The intake of vitamins and minerals especially vitamin D and calcium directly affects the storage level of calcium in the bones. The pediatric bones are more flexible and less brittle because of its low density.

Therefore, the correct answer is option B.