Question

1. Identify the figure.
2. Label W, X, Y and Z.
3. State the chemical composition of the material of the figure.
4. What is the function of X?

Answer 1

1. The figure is a section of bone.
2. W - periosteum; X - Haversian canal; Y - canaliculus; Z - endosteum.
3. Bone matrix contains organic material (ossein) and mineral salts, mainly calcium and magnesium phosphates and carbonates.
4. The Haversian canal carries blood vessels and nerves, supplying nutrients to the bone tissue.