The document discusses the process of ossification where cartilage is changed to bone during human development. It explains that ossification is impacted by three key cells: osteoblasts, which build bone; osteocytes, which are trapped osteoblasts that give bone its star-shaped appearance; and osteoclasts, which break down old or damaged bone. The document also outlines factors like nutrition, vitamins, hormones, and growth that influence bone growth and remodeling throughout life.

1. Growth of Bone Lloyd Dean Skeletal System

5. Osteoblasts and Osteoclasts

6. Bone Remodelling

7. Osteoblasts, Osteoclasts and Osteoporosis