b) Calcium and phosphorus
The bone matrix contains bone minerals also known as hydroxyapatite, which consists of mainly calcium and phosphorus with trace amounts of sodium, magnesium, and bicarbonate. Fluorides, potassium and phosphorous are not found in insignificant amounts in the bone.
- Bone matrix is the intercellular substance of bone tissue consisting of collagen fibres, ground substance, and inorganic bone salts
- It is the flexible protein matrix in which minerals such as calcium and phosphorus