# data[].attributes.body
Osteogenic cells are formed

# data[].attributes.body
Osteogenic  cells make the Hyaline cartilage

# data[].attributes.body
Cartilage develops periosteum.

# data[].attributes.body
Blood vessels are formed, periosteum is now fully formed

# data[].attributes.body
Medulla cavity is forming, a second ossification is also forming

# data[].attributes.body
Bone is now fully formed